METHOD FOR PRODUCTION OF TITANIUM DIOXIDE PIGMENT Russian patent published in 1995 - IPC

Abstract RU 2038300 C1

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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RU 2 038 300 C1

Authors

Tomas Jan Braunbridzh[Us]

Dates

1995-06-27Published

1990-10-16Filed