* Specializes in the production of high-purity lithopone B311, suitable for use in high-end applications.
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2025-08-14 07:36
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The ingredient in question? Titanium dioxide.
Sulphate process. The ilmenite is reacted with sulphuric acid giving titanium sulphate and ferric oxide. After separation of ferric oxide, addition of alkali allows precipitation of hydrous titanium dioxide. The washed precipitate is calcined in a rotary kiln to render titanium dioxide. The nucleation and calcination conditions determine the crystalline structure of titanium dioxide (e.g. rutile or anatase).