Titanium dioxide sulfate process

Produced through the sulfate process, titanium dioxide stands as one of the most extensively utilized forms of TiO₂ in the global chemical manufacturing industry. As one of the two core industrial production methods—alongside the chloride process—the sulfate process entails a series of well-established chemical reactions: first, titanium-containing ores (most commonly ilmenite or titanium slag) are reacted with sulfuric acid, yielding a crude titanium sulfate solution. This solution then undergoes a series of refined processing steps, including hydrolysis to form titanium hydroxide precipitates, high-temperature calcination to induce crystal formation, and targeted surface modification treatments, ultimately resulting in the high-quality TiO₂ pigment product.

A key advantage of the sulfate process lies in its versatility: it can efficiently produce both anatase and rutile crystal phases of titanium dioxide. This flexibility empowers manufacturers to customize the crystal form, particle size, and surface properties of the final product, ensuring it precisely meets the unique performance demands of different end applications. With decades of industrial practice and continuous technological optimization, sulfate-process TiO₂ has earned widespread recognition for its consistent product quality, strong compatibility with various raw materials, and reliable performance across a diverse array of industries. Its applications span paints, coatings, plastics, papermaking, rubber, textiles, and beyond, making it an indispensable raw material in modern industrial production.