The production of titanium dioxide powder has significant environmental impacts, primarily due to the energy-intensive nature of the chloride process
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2025-08-15 06:28
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A safety review conducted by the EFSA in 2021 assessed thousands of studies published on titanium dioxide.
The reaction liquid is filtered through plate and frame pressure to obtain lithopone in the form of a filter cake with a moisture content of no more than 45%. It is then roasted in a drying furnace to change the crystal form of lithopone, and is then pickled with sulfuric acid at a temperature of 80°C. Finally, it is washed with water, reinforced with colorants, filtered, dried and ground into powder.