{"id":1935,"date":"2026-03-25T17:42:11","date_gmt":"2026-03-25T09:42:11","guid":{"rendered":"https:\/\/junglenical.com\/?page_id=1935"},"modified":"2026-05-24T20:56:48","modified_gmt":"2026-05-24T12:56:48","slug":"gold-recovery-chemical","status":"publish","type":"page","link":"https:\/\/junglenical.com\/fr\/chemical-solution\/gold-recovery-chemical\/","title":{"rendered":"Solution chimique pour la r\u00e9cup\u00e9ration de l'or"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"1935\" class=\"elementor elementor-1935\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cbbedd8 e-flex e-con-boxed e-con e-parent\" data-id=\"cbbedd8\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-94b511d e-con-full e-flex e-con e-child\" data-id=\"94b511d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-dcce978 e-con-full e-flex e-con e-child\" data-id=\"dcce978\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b1f5c8b elementor-widget elementor-widget-heading\" data-id=\"b1f5c8b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Solutions pour l'industrie chimique dans le domaine de l'extraction de l'or<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-666e2d2 elementor-widget elementor-widget-ucaddon_breadcrumbs_widget\" data-id=\"666e2d2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"ucaddon_breadcrumbs_widget.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n<!-- start Breadcrumbs -->\n\t\t<link id='font-awesome-css' href='https:\/\/junglenical.com\/wp-content\/plugins\/unlimited-elements-for-elementor-premium\/assets_libraries\/font-awesome6\/fontawesome-all.min.css' type='text\/css' rel='stylesheet' >\n\t\t<link id='font-awesome-4-shim-css' href='https:\/\/junglenical.com\/wp-content\/plugins\/unlimited-elements-for-elementor-premium\/assets_libraries\/font-awesome6\/fontawesome-v4-shims.min.css' type='text\/css' rel='stylesheet' >\n\n<style>\/* widget: Breadcrumbs *\/\n\n#uc_breadcrumbs_widget_elementor_666e2d2 .uc-breadcrumbs-list {\n  margin: 0;\n  padding: 0;\n  display: flex;\n  flex-wrap: wrap;\n}\n#uc_breadcrumbs_widget_elementor_666e2d2 .uc-breadcrumbs-list li {\n  display: flex;\n  align-items: center;\n  list-style-type: none;\n}\n#uc_breadcrumbs_widget_elementor_666e2d2 .uc-item-title {\n    position: relative;\n    display: inline-flex;\n    justify-content: center;\n    align-items: center;\n}\n#uc_breadcrumbs_widget_elementor_666e2d2 .uc-item-title-inner{\n  display: flex;\n  align-items: center;\n}\n\n\n\n\n\n\n\n<\/style>\n\n\n    \t\n            <div id=\"uc_breadcrumbs_widget_elementor_666e2d2\" class=\"uc-breadcrumbs\">\n            <ul class=\"uc-breadcrumbs-list default\">\n                                                            <li class=\"uc-breadcrumb-item\">\n                            <a href=\"https:\/\/junglenical.com\/fr\/\" class=\"uc-item-title\">\n                              <span class=\"uc-item-title-inner\">\n                                                                                                Accueil\n                              <\/span>\n                            <\/a>\n                                                    <\/li>              \t\t    \n                                                <\/ul>\n        <\/div>\n\n            \n<!-- end Breadcrumbs -->\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-574e315 elementor-widget elementor-widget-text-editor\" data-id=\"574e315\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\">L'extraction de l'or est l'une des techniques chimiques les plus complexes de l'industrie mini\u00e8re, qui n\u00e9cessite de choisir les mat\u00e9riaux appropri\u00e9s et de ma\u00eetriser la technologie \u00e0 chaque \u00e9tape de la r\u00e9cup\u00e9ration. Chaque \u00e9tape du processus, depuis la production du minerai jusqu'\u00e0 l'extraction du cyanure, en passant par l'extraction du carbone, l'\u00e9luat, l'\u00e9lectro-extraction et l'affinage final, d\u00e9pend de la haute performance des produits chimiques afin de maximiser le rendement en or, de minimiser les co\u00fbts d'exploitation et de respecter les normes environnementales de plus en plus strictes. Les partenaires chimiques comp\u00e9tents proposent non seulement des produits individuels, mais aussi des solutions coh\u00e9rentes et adapt\u00e9es \u00e0 chaque application tout au long du cycle complet de traitement de l'or.<\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b30c559 e-flex e-con-boxed e-con e-parent\" data-id=\"b30c559\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-13a7962 e-con-full e-flex e-con e-child\" data-id=\"13a7962\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-1ee193d e-con-full e-flex e-con e-child\" data-id=\"1ee193d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1407255 elementor-widget elementor-widget-heading\" data-id=\"1407255\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Sch\u00e9ma de proc\u00e9d\u00e9 d'extraction de l'or et produits chimiques utilis\u00e9s<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9b4c0df e-con-full e-flex e-con e-child\" data-id=\"9b4c0df\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b537af0 elementor-widget elementor-widget-heading\" data-id=\"b537af0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u00c9tape 1 : Concassage et broyage<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-133cf46 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"133cf46\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-973fe82 e-con-full e-flex e-con e-child\" data-id=\"973fe82\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0a48e68 elementor-widget elementor-widget-text-editor\" data-id=\"0a48e68\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\">Avant de commencer tout traitement chimique, il est n\u00e9cessaire de concasser et de broyer le minerai en poudre afin de lib\u00e9rer les grains d\u2019or du substrat et de r\u00e9duire la taille des grains, de mani\u00e8re \u00e0 garantir un contact suffisant entre le minerai et la solution de lixiviation. Cette phase est purement m\u00e9canique, mais les proc\u00e9d\u00e9s chimiques en aval sont tr\u00e8s efficaces pour atteindre la granulom\u00e9trie ad\u00e9quate \u2014 g\u00e9n\u00e9ralement comprise entre 75 et 150 microm\u00e8tres pour les circuits de lixiviation traditionnels. Un broyage excessif augmente les co\u00fbts \u00e9nerg\u00e9tiques et g\u00e9n\u00e8re un exc\u00e8s de fines, ce qui rend plus difficile la s\u00e9paration des phases solide et liquide en aval, tandis qu\u2019un broyage insuffisant maintient l\u2019or pi\u00e9g\u00e9 dans la roche intacte, r\u00e9duisant ainsi le rendement total. Ainsi, la conception et le contr\u00f4le ad\u00e9quats du circuit de broyage sont essentiels pour optimiser l\u2019utilisation du produit chimique et l\u2019extraction de l\u2019or lors des phases suivantes.<\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-33a2b11 e-con-full e-flex e-con e-child\" data-id=\"33a2b11\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c30beaa elementor-widget elementor-widget-heading\" data-id=\"c30beaa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u00c9tape 2 : Lixiviation au cyanure <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b740843 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"b740843\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d301546 e-con-full e-flex e-con e-child\" data-id=\"d301546\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-551ef9f e-n-tabs-mobile elementor-widget elementor-widget-n-tabs\" data-id=\"551ef9f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;tabs_justify_horizontal&quot;:&quot;start&quot;,&quot;horizontal_scroll&quot;:&quot;disable&quot;}\" data-widget_type=\"nested-tabs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"e-n-tabs\" data-widget-number=\"89255839\" aria-label=\"Onglets. Ouvrez des \u00e9l\u00e9ments avec Entrer ou Espace, fermez-les avec Echape et naviguez \u00e0 l&#039;aide des touches fl\u00e9ch\u00e9es.\">\n\t\t\t<div class=\"e-n-tabs-heading\" role=\"tablist\">\n\t\t\t\t\t<button id=\"e-n-tab-title-892558391\" data-tab-title-id=\"e-n-tab-title-892558391\" class=\"e-n-tab-title\" aria-selected=\"true\" data-tab-index=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"e-n-tab-content-892558391\" style=\"--n-tabs-title-order: 1;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tLixiviation classique (pr\u00e9-CIP)\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-892558392\" data-tab-title-id=\"e-n-tab-title-892558392\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-892558392\" style=\"--n-tabs-title-order: 2;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tPr\u00e9traitement par oxydation sous pression (POX)\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-892558393\" data-tab-title-id=\"e-n-tab-title-892558393\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-892558393\" style=\"--n-tabs-title-order: 3;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tPr\u00e9traitement par bio-oxydation (BIOX)\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t\t<\/div>\n\t\t\t<div class=\"e-n-tabs-content\">\n\t\t\t\t<div id=\"e-n-tab-content-892558391\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-892558391\" data-tab-index=\"1\" style=\"--n-tabs-title-order: 1;\" class=\"e-active elementor-element elementor-element-6625ddb e-con-full e-flex e-con e-child\" data-id=\"6625ddb\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-a3d61db e-flex e-con-boxed e-con e-child\" data-id=\"a3d61db\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9e155f1 elementor-widget elementor-widget-heading\" data-id=\"9e155f1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Lixiviation classique (pr\u00e9-CIP)<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7799e6d elementor-widget elementor-widget-text-editor\" data-id=\"7799e6d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\">Dans le proc\u00e9d\u00e9 classique de cyanuration, la pulpe de minerai broy\u00e9 est trait\u00e9e avec une solution alcaline (pH 10,5 \u2013 11,5) dans une s\u00e9rie de cuves d'agitation afin de dissoudre l'or en un complexe soluble d'or et de cyanure (Au(CN)\u2082n). De l\u2019oxyg\u00e8ne ou de l\u2019air est introduit pour entretenir la r\u00e9action de dissolution par oxydation. La dur\u00e9e de la lixiviation est g\u00e9n\u00e9ralement comprise entre 24 et 48 heures, en fonction de la min\u00e9ralogie du minerai, de la teneur en or et du taux de consommation de cyanure. Un contr\u00f4le efficace du pH est crucial : un manque d\u2019alcali entra\u00eene la production de gaz HCN (cyanure d\u2019hydrog\u00e8ne) toxique, tandis qu\u2019un exc\u00e8s de chaux augmente le co\u00fbt de l\u2019agent et peut rendre la surface du m\u00e9tal inactive. La concentration en cyanure, l\u2019oxyg\u00e8ne dissous (OD) et la temp\u00e9rature constituent les principaux leviers permettant d\u2019optimiser la dynamique de dissolution de l\u2019or et l\u2019efficacit\u00e9 globale de la lixiviation.<\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9407896 elementor-widget elementor-widget-text-editor\" data-id=\"9407896\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\"><strong>Mat\u00e9riaux chimiques n\u00e9cessaires :<\/strong><\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cd9ee25 e-grid e-con-full e-con e-child\" data-id=\"cd9ee25\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fe9b005 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"fe9b005\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/junglenical.com\/fr\/activated-carbon\/\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1067\" src=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388.webp\" class=\"attachment-full size-full wp-image-5877\" alt=\"Image du lien \u00ab Charbon actif \u00bb\" srcset=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388.webp 1600w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-300x200.webp 300w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-1024x683.webp 1024w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-768x512.webp 768w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-1536x1024.webp 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\">Charbon actif<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c49ae5d elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"c49ae5d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/junglenical.com\/fr\/sodium-cyanide\/\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1067\" src=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1.webp\" class=\"attachment-full size-full wp-image-7014\" alt=\"\" srcset=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1.webp 1600w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-300x200.webp 300w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-1024x683.webp 1024w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-768x512.webp 768w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-1536x1024.webp 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\">Cyanure de sodium<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div id=\"e-n-tab-content-892558392\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-892558392\" data-tab-index=\"2\" style=\"--n-tabs-title-order: 2;\" class=\"elementor-element elementor-element-1c9d815 e-con-full e-flex e-con e-child\" data-id=\"1c9d815\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-d860fb8 e-flex e-con-boxed e-con e-child\" data-id=\"d860fb8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d3412ff elementor-widget elementor-widget-heading\" data-id=\"d3412ff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Pr\u00e9traitement par oxydation sous pression (POX)<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-35844af elementor-widget elementor-widget-text-editor\" data-id=\"35844af\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\">Dans le cas des minerais d\u2019or r\u00e9fractaires, o\u00f9 l\u2019or est emprisonn\u00e9 dans des min\u00e9raux sulfur\u00e9s tels que la pyrite ou l\u2019ars\u00e9nopyrite, la cyanuration classique n\u2019atteint qu\u2019un taux de r\u00e9cup\u00e9ration trop faible pour \u00eatre acceptable. Un pr\u00e9traitement (POX) est appliqu\u00e9 avant la lixiviation afin d\u2019oxyder la matrice sulfur\u00e9e \u00e0 temp\u00e9rature et pression \u00e9lev\u00e9es (180 \u2013 225 \u00b0C, 20 \u2013 35 bars), lib\u00e9rant ainsi l\u2019or encapsul\u00e9 et le rendant accessible \u00e0 la lixiviation au cyanure qui suit. Il est n\u00e9cessaire de dissoudre compl\u00e8tement la p\u00e2te oxydante acide avant de proc\u00e9der \u00e0 la lixiviation au cyanure. Bien que le proc\u00e9d\u00e9 POX soit co\u00fbteux en investissements, il permet de produire des quantit\u00e9s d\u2019or nettement sup\u00e9rieures \u00e0 celles obtenues \u00e0 partir de gisements r\u00e9fractaires \u00e9conomiquement viables par d\u2019autres moyens, et il est de plus en plus utilis\u00e9 \u00e0 mesure que les gisements en vrac de meilleure qualit\u00e9 s\u2019\u00e9puisent \u00e0 travers le monde.<\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-59b3729 elementor-widget elementor-widget-text-editor\" data-id=\"59b3729\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\"><strong>Mat\u00e9riaux chimiques n\u00e9cessaires :<\/strong><\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7a16e27 e-grid e-con-full e-con e-child\" data-id=\"7a16e27\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1a3a852 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"1a3a852\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/junglenical.com\/fr\/sodium-cyanide\/\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1067\" src=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1.webp\" class=\"attachment-full size-full wp-image-7014\" alt=\"\" srcset=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1.webp 1600w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-300x200.webp 300w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-1024x683.webp 1024w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-768x512.webp 768w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-1536x1024.webp 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\">Cyanure de sodium<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div id=\"e-n-tab-content-892558393\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-892558393\" data-tab-index=\"3\" style=\"--n-tabs-title-order: 3;\" class=\"elementor-element elementor-element-e5216a9 e-con-full e-flex e-con e-child\" data-id=\"e5216a9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-738df26 e-flex e-con-boxed e-con e-child\" data-id=\"738df26\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4e1dc52 elementor-widget elementor-widget-heading\" data-id=\"4e1dc52\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Pr\u00e9traitement par bio-oxydation (BIOX)<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f6714b7 elementor-widget elementor-widget-text-editor\" data-id=\"f6714b7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\">La biooxydation est une autre m\u00e9thode de pr\u00e9traitement des minerais d'or r\u00e9fractaires contenant du soufre, qui repose sur l'utilisation de bact\u00e9ries acidog\u00e8nes naturelles (principalement Acidithiobacillus<\/span><span class=\"color_font\"><i> ferrooxidans<\/i><\/span><span class=\"color_font\"> et Azidithiobacillus<\/span><span class=\"color_font\"><i> thiooxidans<\/i><\/span><span class=\"color_font\">) pour l'oxydation des min\u00e9raux sulfur\u00e9s \u00e0 temp\u00e9rature moyenne (35-45 \u00b0C). Le proc\u00e9d\u00e9 BIOX pr\u00e9sente des co\u00fbts d'investissement et de consommation d'\u00e9nergie inf\u00e9rieurs \u00e0 ceux du proc\u00e9d\u00e9 POX, ce qui en fait une option int\u00e9ressante pour les mines de roches r\u00e9fractaires de taille moyenne. Les boues issues de la bio-oxydation sont \u00e9pur\u00e9es, neutralis\u00e9es, puis achemin\u00e9es vers un processus de cyanuration classique. Un contr\u00f4le rigoureux du pH et de la temp\u00e9rature, ainsi que l\u2019apport de compl\u00e9ments nutritionnels, sont n\u00e9cessaires pour garantir l\u2019activit\u00e9 des bact\u00e9ries et maintenir un taux d\u2019oxydation constant tout au long du cycle d\u2019oxydation biologique.<\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0de5682 elementor-widget elementor-widget-text-editor\" data-id=\"0de5682\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\"><strong>Mat\u00e9riaux chimiques n\u00e9cessaires :<\/strong><\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3c570d6 e-grid e-con-full e-con e-child\" data-id=\"3c570d6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f2098e5 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"f2098e5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/junglenical.com\/fr\/sodium-cyanide\/\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1067\" src=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1.webp\" class=\"attachment-full size-full wp-image-7014\" alt=\"\" srcset=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1.webp 1600w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-300x200.webp 300w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-1024x683.webp 1024w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-768x512.webp 768w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-1536x1024.webp 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\">Cyanure de sodium<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bfc5f5a e-con-full e-flex e-con e-child\" data-id=\"bfc5f5a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-965b8cf elementor-widget elementor-widget-heading\" data-id=\"965b8cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u00c9tape 3 : Adsorption du carbone<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f8647aa elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"f8647aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-974a3db e-con-full e-flex e-con e-child\" data-id=\"974a3db\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ad196a4 e-n-tabs-mobile elementor-widget elementor-widget-n-tabs\" data-id=\"ad196a4\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;tabs_justify_horizontal&quot;:&quot;start&quot;,&quot;horizontal_scroll&quot;:&quot;disable&quot;}\" data-widget_type=\"nested-tabs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"e-n-tabs\" data-widget-number=\"181507748\" aria-label=\"Onglets. Ouvrez des \u00e9l\u00e9ments avec Entrer ou Espace, fermez-les avec Echape et naviguez \u00e0 l&#039;aide des touches fl\u00e9ch\u00e9es.\">\n\t\t\t<div class=\"e-n-tabs-heading\" role=\"tablist\">\n\t\t\t\t\t<button id=\"e-n-tab-title-1815077481\" data-tab-title-id=\"e-n-tab-title-1815077481\" class=\"e-n-tab-title\" aria-selected=\"true\" data-tab-index=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"e-n-tab-content-1815077481\" style=\"--n-tabs-title-order: 1;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tCCIP (Carbon-in-Pulp)\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-1815077482\" data-tab-title-id=\"e-n-tab-title-1815077482\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-1815077482\" style=\"--n-tabs-title-order: 2;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tCIL (Carbon-in-Leach)\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-1815077483\" data-tab-title-id=\"e-n-tab-title-1815077483\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-1815077483\" style=\"--n-tabs-title-order: 3;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tCIC (charbon actif en colonne)\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t\t<\/div>\n\t\t\t<div class=\"e-n-tabs-content\">\n\t\t\t\t<div id=\"e-n-tab-content-1815077481\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-1815077481\" data-tab-index=\"1\" style=\"--n-tabs-title-order: 1;\" class=\"e-active elementor-element elementor-element-e1e5088 e-con-full e-flex e-con e-child\" data-id=\"e1e5088\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-eb6ae91 e-flex e-con-boxed e-con e-child\" data-id=\"eb6ae91\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5a656e6 elementor-widget elementor-widget-heading\" data-id=\"5a656e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">CCIP (Carbon-in-Pulp)<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5419d14 elementor-widget elementor-widget-text-editor\" data-id=\"5419d14\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\">Dans le circuit CIP, une fois l\u2019extraction au cyanure termin\u00e9e, le charbon actif est introduit dans une s\u00e9rie de cuves d\u2019agitation. Le charbon circule dans des directions oppos\u00e9es au sein de la boue de lixiviation et absorbe progressivement les complexes de cyanure d\u2019or pr\u00e9sents dans la solution \u00e0 mesure que le temps de contact s\u2019allonge dans la cascade de r\u00e9servoirs. Le charbon charg\u00e9 est filtr\u00e9 hors de la boue \u00e0 chaque \u00e9tape, le charbon le plus lourd se dirigeant vers l\u2019\u00e9lution et le charbon neuf ou r\u00e9g\u00e9n\u00e9r\u00e9 se retrouvant en fin de circuit. Le CIP est une norme industrielle pour le traitement des minerais \u00e0 broyage libre, exempts de pr\u00e9-gel. Il est reconnu pour sa simplicit\u00e9 d\u2019exploitation, son \u00e9volutivit\u00e9 et ses performances constantes sur une grande vari\u00e9t\u00e9 de minerais et de teneurs en or.<\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-80866af elementor-widget elementor-widget-text-editor\" data-id=\"80866af\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\"><strong>Mat\u00e9riaux chimiques n\u00e9cessaires :<\/strong><\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a2899b0 e-grid e-con-full e-con e-child\" data-id=\"a2899b0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a3576cf elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"a3576cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/junglenical.com\/fr\/activated-carbon\/\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1067\" src=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388.webp\" class=\"attachment-full size-full wp-image-5877\" alt=\"Image du lien \u00ab Charbon actif \u00bb\" srcset=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388.webp 1600w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-300x200.webp 300w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-1024x683.webp 1024w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-768x512.webp 768w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-1536x1024.webp 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\">Charbon actif<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7becad5 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"7becad5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/junglenical.com\/fr\/sodium-cyanide\/\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1067\" src=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1.webp\" class=\"attachment-full size-full wp-image-7014\" alt=\"\" srcset=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1.webp 1600w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-300x200.webp 300w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-1024x683.webp 1024w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-768x512.webp 768w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Cyanide-Link-Image-1-1536x1024.webp 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\">Cyanure de sodium<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div id=\"e-n-tab-content-1815077482\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-1815077482\" data-tab-index=\"2\" style=\"--n-tabs-title-order: 2;\" class=\"elementor-element elementor-element-a1cb791 e-con-full e-flex e-con e-child\" data-id=\"a1cb791\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-33175aa e-flex e-con-boxed e-con e-child\" data-id=\"33175aa\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e72bb49 elementor-widget elementor-widget-heading\" data-id=\"e72bb49\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Pr\u00e9traitement par oxydation sous pression (POX)<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f204178 elementor-widget elementor-widget-text-editor\" data-id=\"f204178\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\">Le proc\u00e9d\u00e9 CIL combine l'extraction et l'absorption du carbone dans un seul r\u00e9acteur, o\u00f9 le charbon actif est pr\u00e9sent tout au long du cycle de production au cyanure. Ce proc\u00e9d\u00e9 est sp\u00e9cialement con\u00e7u pour les minerais \u00e0 g\u00e9lification pr\u00e9coce, dans lesquels les min\u00e9raux naturels contenant du carbone pr\u00e9sents dans le minerai entrent en concurrence avec le charbon de proc\u00e9d\u00e9 pour l'absorption de l'or dissous. Gr\u00e2ce \u00e0 l\u2019introduction simultan\u00e9e de charbon actif et de cyanure, le charbon de traitement est capable de rivaliser avec les min\u00e9raux de pr\u00e9-g\u00e9lification et de capturer l\u2019or avant qu\u2019il ne soit irr\u00e9m\u00e9diablement perdu. Le proc\u00e9d\u00e9 CIL n\u00e9cessite g\u00e9n\u00e9ralement un stock de charbon plus important que le proc\u00e9d\u00e9 CIP, ce qui soumet le charbon \u00e0 des contraintes m\u00e9caniques plus importantes ; c\u2019est pourquoi la r\u00e9sistance \u00e0 l\u2019usure est particuli\u00e8rement importante lors du choix du charbon pour les applications CIL.<\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b1f2465 elementor-widget elementor-widget-text-editor\" data-id=\"b1f2465\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\"><strong>Mat\u00e9riaux chimiques n\u00e9cessaires :<\/strong><\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ec4a395 e-grid e-con-full e-con e-child\" data-id=\"ec4a395\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1bc9785 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"1bc9785\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/junglenical.com\/fr\/activated-carbon\/\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1067\" src=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388.webp\" class=\"attachment-full size-full wp-image-5877\" alt=\"Image du lien \u00ab Charbon actif \u00bb\" srcset=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388.webp 1600w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-300x200.webp 300w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-1024x683.webp 1024w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-768x512.webp 768w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-1536x1024.webp 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\">Charbon actif <\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div id=\"e-n-tab-content-1815077483\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-1815077483\" data-tab-index=\"3\" style=\"--n-tabs-title-order: 3;\" class=\"elementor-element elementor-element-b83b03e e-con-full e-flex e-con e-child\" data-id=\"b83b03e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-5bf3f61 e-flex e-con-boxed e-con e-child\" data-id=\"5bf3f61\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bafbae3 elementor-widget elementor-widget-heading\" data-id=\"bafbae3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">CIC (charbon actif en colonne)<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7e90b38 elementor-widget elementor-widget-text-editor\" data-id=\"7e90b38\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\">Le CIC est une m\u00e9thode privil\u00e9gi\u00e9e pour l\u2019absorption de l\u2019or dans un proc\u00e9d\u00e9 de lixiviation en tas, dans lequel un d\u00e9p\u00f4t contenant de l\u2019or a \u00e9t\u00e9 extrait du minerai et est pomp\u00e9 dans une colonne PAC solide et conditionn\u00e9e. La clarification de la solution permet d\u2019obtenir un flux nettement plus \u00e9lev\u00e9 avec une usure minimale du charbon, ce qui rend le CIC tr\u00e8s efficace pour les gisements de grande taille et \u00e0 faible teneur. Les piliers fonctionnent en s\u00e9quence \u2013 pilier principal, interm\u00e9diaire et de polissage \u2013 afin de garantir que l\u2019or soit enti\u00e8rement captur\u00e9 avant que la solution r\u00e9siduelle ne soit r\u00e9introduite dans le tas. Le proc\u00e9d\u00e9 CIC n\u00e9cessite un charbon pr\u00e9sentant de bonnes performances d\u2019\u00e9coulement et r\u00e9sistant \u00e0 l\u2019encrassement biologique caus\u00e9 par une exposition \u00e0 long terme \u00e0 des mati\u00e8res organiques.<\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-16a0cf8 elementor-widget elementor-widget-text-editor\" data-id=\"16a0cf8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\"><strong>Mat\u00e9riaux chimiques n\u00e9cessaires :<\/strong><\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e4469d4 e-grid e-con-full e-con e-child\" data-id=\"e4469d4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6f26e73 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"6f26e73\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/junglenical.com\/fr\/activated-carbon\/\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1067\" src=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388.webp\" class=\"attachment-full size-full wp-image-5877\" alt=\"Image du lien \u00ab Charbon actif \u00bb\" srcset=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388.webp 1600w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-300x200.webp 300w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-1024x683.webp 1024w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-768x512.webp 768w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/10709388-1536x1024.webp 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\">Charbon actif<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-db6673d elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"db6673d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/junglenical.com\/fr\/sodium-hydroxide\/\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1067\" src=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Hydroxide-Link-Image.webp\" class=\"attachment-full size-full wp-image-6934\" alt=\"\" srcset=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Hydroxide-Link-Image.webp 1600w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Hydroxide-Link-Image-300x200.webp 300w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Hydroxide-Link-Image-1024x683.webp 1024w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Hydroxide-Link-Image-768x512.webp 768w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Hydroxide-Link-Image-1536x1024.webp 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\">Hydroxyde de sodium (NaOH)<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e5befd9 e-con-full e-flex e-con e-child\" data-id=\"e5befd9\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a97297d elementor-widget elementor-widget-heading\" data-id=\"a97297d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u00c9tape 4 : \u00c9luation (stripping)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dcf403b elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"dcf403b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e77e7b4 e-con-full e-flex e-con e-child\" data-id=\"e77e7b4\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5f5aace elementor-widget elementor-widget-text-editor\" data-id=\"5f5aace\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\">Depuis la boucle d'adsorption, le charbon actif est achemin\u00e9 vers la tour d'\u00e9lution, o\u00f9 le compos\u00e9 de cyanure d'or est s\u00e9par\u00e9 de la surface du charbon et renvoy\u00e9 vers la solution de concentration \u00e0 l'aide d'une solution de cyanure caustique chauff\u00e9e. Deux des techniques d\u2019\u00e9lution les plus courantes sont l\u2019AARL (ARL), qui comporte des bandes successives de lavage \u00e0 l\u2019eau et de cyanuration caustique \u00e0 environ 110 \u00b0C, et le proc\u00e9d\u00e9 ZADRA (dans lequel une solution de cyanure caustique s\u2019\u00e9coule en continu \u00e0 travers la colonne \u00e0 une temp\u00e9rature comprise entre 90 et 95 \u00b0C). Ces deux proc\u00e9d\u00e9s g\u00e9n\u00e8rent un \u00e9luat riche en or qui est achemin\u00e9 vers l\u2019\u00e9lectro-extraction pour la r\u00e9cup\u00e9ration de l\u2019or. Une \u00e9lution compl\u00e8te est essentielle : le charbon partiellement charg\u00e9 qui est renvoy\u00e9 dans le circuit d\u2019adsorption contient un stock d\u2019or r\u00e9siduel qui r\u00e9duit la capacit\u00e9 effective du circuit et diminue directement le taux de r\u00e9cup\u00e9ration.<\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c2ff32 elementor-widget elementor-widget-text-editor\" data-id=\"1c2ff32\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\"><strong>Mat\u00e9riaux chimiques n\u00e9cessaires :<\/strong><\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a571ff9 e-grid e-con-full e-con e-child\" data-id=\"a571ff9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f49818b elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"f49818b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/junglenical.com\/fr\/sodium-hydroxide\/\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1067\" src=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Hydroxide-Link-Image.webp\" class=\"attachment-full size-full wp-image-6934\" alt=\"\" srcset=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Hydroxide-Link-Image.webp 1600w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Hydroxide-Link-Image-300x200.webp 300w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Hydroxide-Link-Image-1024x683.webp 1024w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Hydroxide-Link-Image-768x512.webp 768w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Hydroxide-Link-Image-1536x1024.webp 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\">Hydroxyde de sodium (NaOH) <\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-867924b e-con-full e-flex e-con e-child\" data-id=\"867924b\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6dddf9a elementor-widget elementor-widget-heading\" data-id=\"6dddf9a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u00c9tape 5 : \u00c9lectro-extraction<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b849bb7 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"b849bb7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f00993c e-con-full e-flex e-con e-child\" data-id=\"f00993c\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-851f285 elementor-widget elementor-widget-text-editor\" data-id=\"851f285\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><p class=\"otl-paragraph\"><span class=\"color_font\">L\u2019\u00e9luat riche en or g\u00e9n\u00e9r\u00e9 lors de l\u2019\u00e9lution est trait\u00e9 dans des cellules d\u2019\u00e9lectro-extraction, o\u00f9 un courant \u00e9lectrique continu permet \u00e0 l\u2019or \u2014 ainsi qu\u2019\u00e0 l\u2019argent et aux autres m\u00e9taux co-d\u00e9pos\u00e9s \u2014 de se pr\u00e9cipiter hors de la solution sur des cathodes en laine d\u2019acier. L'\u00e9lectrolyte appauvri (\u00e9luat st\u00e9rile) est renvoy\u00e9 vers le circuit d'\u00e9lution pour \u00eatre r\u00e9utilis\u00e9. Les boues de l'\u00e9lectrode positive, contenant les d\u00e9p\u00f4ts d'or, sont r\u00e9guli\u00e8rement r\u00e9cup\u00e9r\u00e9es, nettoy\u00e9es puis achemin\u00e9es vers l'usine de fusion. Le rendement de l\u2019\u00e9lectro-extraction d\u00e9pend de la concentration en or de l\u2019\u00e9luat, de la conductivit\u00e9 de la solution et de la temp\u00e9rature de fonctionnement. Il est essentiel de maintenir un environnement de cellule propre et exempt de tartre, et de contr\u00f4ler la composition chimique de l\u2019\u00e9lectrolyte pour obtenir un rendement de courant \u00e9lev\u00e9 et optimiser la puret\u00e9 des boues d\u2019or \u00e9lectrod\u00e9pos\u00e9es.<\/span><\/p><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a98aa0c elementor-widget elementor-widget-text-editor\" data-id=\"a98aa0c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\"><strong>Mat\u00e9riaux chimiques n\u00e9cessaires :<\/strong><\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4be175b e-grid e-con-full e-con e-child\" data-id=\"4be175b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-25061c0 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"25061c0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/junglenical.com\/fr\/sodium-laureth-sulfate\/\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1067\" src=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image.webp\" class=\"attachment-full size-full wp-image-6926\" alt=\"\" srcset=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image.webp 1600w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image-300x200.webp 300w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image-1024x683.webp 1024w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image-768x512.webp 768w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image-1536x1024.webp 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\">Laurylsulfate de sodium (Laureth)<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1fdb711 e-con-full e-flex e-con e-child\" data-id=\"1fdb711\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ba19d0a elementor-widget elementor-widget-heading\" data-id=\"ba19d0a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u00c9tape 6 : Fusion et affinage<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9fd2eca elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"9fd2eca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-498d9aa e-con-full e-flex e-con e-child\" data-id=\"498d9aa\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-768b71c elementor-widget elementor-widget-text-editor\" data-id=\"768b71c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\">Les boues cathodiques aurif\u00e8res issues de l\u2019\u00e9lectro-extraction sont s\u00e9ch\u00e9es, m\u00e9lang\u00e9es \u00e0 des fondants, puis fondues dans un four \u00e0 induction ou \u00e0 gaz \u00e0 une temp\u00e9rature comprise entre environ 1 100 et 1 200 \u00b0C afin de produire des lingots de dor\u00e9 \u2014 un alliage brut d\u2019or et d\u2019argent \u2014 destin\u00e9s \u00e0 \u00eatre exp\u00e9di\u00e9s vers une raffinerie. Le choix des fondants est crucial : le m\u00e9lange de fondants doit permettre d\u2019\u00e9liminer efficacement sous forme de scories les impuret\u00e9s de m\u00e9taux communs, notamment le fer, le cuivre et le plomb, tout en conservant une scorie liquide et facilement s\u00e9parable. \u00c0 ce stade, la puret\u00e9 du dor\u00e9 varie g\u00e9n\u00e9ralement entre 60 et 95% d\u2019or, en fonction de la min\u00e9ralogie du minerai et de l\u2019efficacit\u00e9 des processus en amont. L\u2019affinage final \u00e0 99,99% (4N) d\u2019or est effectu\u00e9 dans une raffinerie sp\u00e9cialis\u00e9e dans les m\u00e9taux pr\u00e9cieux, par chloration (m\u00e9thode de Miller) ou par \u00e9lectrolyse (m\u00e9thode de Wohlwill).<\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dbc9241 elementor-widget elementor-widget-text-editor\" data-id=\"dbc9241\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\"><strong>Mat\u00e9riaux chimiques n\u00e9cessaires :<\/strong><\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a5dfb3f e-grid e-con-full e-con e-child\" data-id=\"a5dfb3f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-85db3bc elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"85db3bc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/junglenical.com\/fr\/sodium-laureth-sulfate\/\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1067\" src=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image.webp\" class=\"attachment-full size-full wp-image-6926\" alt=\"\" srcset=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image.webp 1600w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image-300x200.webp 300w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image-1024x683.webp 1024w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image-768x512.webp 768w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image-1536x1024.webp 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\">Laurylsulfate de sodium (Laureth)<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3511f2e e-con-full e-flex e-con e-child\" data-id=\"3511f2e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c525ab4 elementor-widget elementor-widget-heading\" data-id=\"c525ab4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u00c9tape 7 : Traitement des r\u00e9sidus et destruction du cyanure<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-659f1c0 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"659f1c0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-52fd701 e-con-full e-flex e-con e-child\" data-id=\"52fd701\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3a04990 elementor-widget elementor-widget-text-editor\" data-id=\"3a04990\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\">Le circuit CIP\/CIL contient des r\u00e9sidus de cyanure, des compos\u00e9s cyanur\u00e9s et des microquantit\u00e9s de m\u00e9taux lourds qui doivent \u00eatre trait\u00e9s avant d'\u00eatre rejet\u00e9s ou stock\u00e9s dans le respect de l'environnement. Le Code international de gestion du cyanure (ICMC) d\u00e9finit les crit\u00e8res g\u00e9n\u00e9ralement admis pour le rejet du cyanure. La m\u00e9thode INCO SO\u2082\/Air est la plus couramment utilis\u00e9e pour d\u00e9truire le cyanure : elle oxydent le cyanure libre et l\u2019acide faible (WAD) en une forme moins toxique de cyanure, puis finalement en azote et en carbonate. Du charbon actif peut \u00e9galement \u00eatre utilis\u00e9 lors de la phase de polissage pour \u00e9liminer les polluants organiques r\u00e9siduels et les oligo-\u00e9l\u00e9ments des eaux us\u00e9es issues du traitement avant leur rejet final.<\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ad28405 elementor-widget elementor-widget-text-editor\" data-id=\"ad28405\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><span class=\"color_font\"><strong>Mat\u00e9riaux chimiques n\u00e9cessaires :<\/strong><\/span><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a295352 e-grid e-con-full e-con e-child\" data-id=\"a295352\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-03ac4a2 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"03ac4a2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/junglenical.com\/fr\/sodium-laureth-sulfate\/\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1067\" src=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image.webp\" class=\"attachment-full size-full wp-image-6926\" alt=\"\" srcset=\"https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image.webp 1600w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image-300x200.webp 300w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image-1024x683.webp 1024w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image-768x512.webp 768w, https:\/\/junglenical.com\/wp-content\/uploads\/2026\/05\/Sodium-Laureth-Sulfate-Link-Image-1536x1024.webp 1536w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\">Laurylsulfate de sodium (Laureth)<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Gold Extraction Chemical Industry Solutions skip render: ucaddon_breadcrumbs_widget The extraction of gold is one of the hardest chemical techniques in the mining industry, which needs to select the appropriate materials and control technology during each phase of the recovery. Every step of the process from the production of the ore to the extraction of the [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":6891,"parent":4327,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"hf_cat_page":[],"class_list":["post-1935","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/junglenical.com\/fr\/wp-json\/wp\/v2\/pages\/1935","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/junglenical.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/junglenical.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/junglenical.com\/fr\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/junglenical.com\/fr\/wp-json\/wp\/v2\/comments?post=1935"}],"version-history":[{"count":0,"href":"https:\/\/junglenical.com\/fr\/wp-json\/wp\/v2\/pages\/1935\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/junglenical.com\/fr\/wp-json\/wp\/v2\/pages\/4327"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/junglenical.com\/fr\/wp-json\/wp\/v2\/media\/6891"}],"wp:attachment":[{"href":"https:\/\/junglenical.com\/fr\/wp-json\/wp\/v2\/media?parent=1935"}],"wp:term":[{"taxonomy":"hf_cat_page","embeddable":true,"href":"https:\/\/junglenical.com\/fr\/wp-json\/wp\/v2\/hf_cat_page?post=1935"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}