lithopone pigment manufacturer

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 With the development of science and technology, various pigments have emerged. Inorganic pigments are facing serious challenges. Nanomaterials are a new class of materials with mesoscopic dimension developed at the end of the 20th century. They are now developing in a low-dimensional and complex direction. . In recent years, nano-Lide powder has been put into industrial production. The zinc sulphate solution is prepared in the same way as the traditional method. In the organic phase (such as benzene), the production cost is high, the wastewater is difficult to recycle, the organic solvent in the production process and the final immersion. Slag is likely to cause environmental pollution, and its development is severely limited.

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Although barium sulfate is almost completely inert, zinc sulfide degrades upon exposure to UV light, leading to darkening of the pigment. The severity of this UV reaction is dependent on a combination of two factors; how much zinc sulfide makes up the pigments formulation, and its total accumulated UV exposure. Depending on these factors the pigment itself can vary in shade over time, ranging from pure white all the way to grey or even black. To suppress this effect, a dopant may be used, such as a small amount of cobalt salts, which would be added to the formulation. This process creates cobalt-doped zinc sulfide. The cobalt salts help to stabilize zinc sulfide so it will not have as severe a reaction to UV exposure.

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Various titanium-rich minerals, including ilmenite and rutile, can serve as starting materials for the production of highly purified Titanium Dioxide. The predominant method employed in Titanium Dioxide production is the chloride process. In this process, the mineral, along with coke and chlorine, undergoes a reaction within a fluidized bed, resulting in the formation of primarily titanium tetrachloride and carbon dioxide. Subsequently, the titanium tetrachloride undergoes purification and conversion to Titanium Dioxide. Another method involves treating ilmenite with sulfuric acid to manufacture the chemical.

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