FIELD: production of paper. SUBSTANCE: method for production of titanium dioxide pigment includes reaction in solution of precursor of titanium tetrahalogenide with sulfuric acid to produce intermediate titanylsulfate product. After crystallization and separation of this intermediate product from solution, crystallized intermediate product is dissolved again in aqueous dissolving medium and hydrolyzed at elevated temperature to produce amorphous titanium dioxide intermediate product in form of particles. After separation from aqueous dissolving medium, the intermediate product is calcined at elevated temperature to produce desired titanium dioxide final product in form of particles. EFFECT: higher efficiency. 25 cl, 1 dwg
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TITANIUM WHITE COMPOSITION | 1989 |
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PROCESS FOR PREPARING TITANIUM DIOXIDE PIGMENT | 1990 |
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METHOD OF PRODUCING MANGANESE SULFATE SOLUTION | 0 |
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SU1447273A3 |
Authors
Dates
1995-06-27—Published
1990-10-16—Filed