Process for preparing titanium dioxide

Details Process for preparing titanium dioxide Process for preparing titanium dioxide

1978-03-23

1979-01-09

Hearn, Brian

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ivb metal

423616, C01G 2306

Patent

active

041338642

ABSTRACT:
Titanium dioxide of improved properties for use as a pigment is obtained by a process in which a non-concentrated acid solution containing not more than 200 grams of TiO.sub.2 per liter of solution is partially hydrolyzed and filtered; and additional acid solution slowly added with heating to hydrolyze the remaining TiO.sub.2 and give a product which, on calcining has a color index of about 1500.

REFERENCES:
patent: 1773727 (1930-08-01), Farup
patent: 1795467 (1931-03-01), Blumenfeld
patent: 1959765 (1934-05-01), Saklatwalla
patent: 3501271 (1970-03-01), Twist et al.

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