How to enhance the performance of lithopone

First, the main way to enhance the performance and stability of lithopone
Many factors affects lithopone(lithopone 28%,lithopone 30%), such as the impact of mineral resources, but also the impact of technology and key equipment. By testing and field experience, the main factors of affecting their whiteness: the quality of the hydrolysis, removal of impurities and calcination conditions.Lithopone(lithopone 28%,lithopone B311)hydrolysis technology, currently there are two kinds-pressure hydrolysis and formal pressure hydrolysis technology, the analysis by the quality of the hydrolysis and product, better quality atmospheric hydrolysis, hydrolysis uniform particle size.To ensure the quality of hydrolysis must be strictly concentrated liquid titanium quality indicators, control iron titanium ratio of solids within the specified range, while increasing control of the hydrolysis process operating conditions.
And another factor affect lithopone performance that is some variegated elements, such as our common iron, cobalt, nickel, etc., which must take certain measures to clear, while adding some masking agents, for example: antimony trioxide and phosphoric acid to iron complexation masking, improve product performance and lithopone quality.
Second, to improve application performance of lithopone through the surface
Titanium dioxide powder is large polarity, the hydrophilic nature is oleophobic, but if the surface has adsorption air, water and other contaminants, which makes the dispersibility lower in water, it is often necessary for the surface treatment, used processing agent is hydrated alumina and hydrated silica. Currently on the market there are many surface treatment agent, for example: silicone, coupling agent treatment, etc., or add some other inorganic pigments such as: barium sulfate, titanium dioxide and aluminum hydroxide to improve the surface characteristics, improve its dispersibility.

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