barium sulphate in paint factories

To make up the batch of lithopone the solution containing the original 1050 pounds of barium sulphide and 856 pounds of titanium acid cake is added to sufiicient zinc sulphate solution of approximately 35 Baum at 60 Centigrade to completely precipitate all the BaS as zinc sulphide and barium sulphate so that the final precipitate contains a suspen-. sion of co-p'recipitated zinc sulphide barium sulphate intimately mixed with a suspension of titanium oxide. On the completion of the reaction, shown by the complete absence of either soluble zinc or barium in a filtered por-.

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The composition of lithopone underscores its superiority in specific applications. Ideally, prepared lithopone consists of 30 to 32 percent sulfide of zinc, and a negligible percentage of zinc oxide (1.5%), with the remaining majority being barium sulfate. These attributes render lithopone nearly comparable to the best grades of French process zinc oxide in terms of whiteness. Furthermore, its oil absorption, which sits between lead carbonate and zinc oxide, solidifies its position as a functional and efficient white pigment.

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China's dominance in the production of titanium dioxide is largely due to its vast mineral reserves and advanced processing technology. With a focus on achieving a minimum purity of 98%, Chinese manufacturers are able to produce high-quality titanium dioxide that meets the stringent requirements of various industries. This commitment to excellence has helped China establish itself as a global leader in the production of titanium dioxide.

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In conclusion, the manufacturing process of lithopone is a complex yet meticulously controlled procedure that combines chemistry, engineering, and precision. From the synthesis of its components to the final grinding, every step contributes to the pigment's performance characteristics. As a widely used material in various industries, the importance of lithopone and its manufacturers cannot be overstated, continually driving advancements in production techniques to cater to evolving market demands.

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{随机栏目} 2025-08-16 01:56 2073