Method for purifying titanyl hydrate

Details Method for purifying titanyl hydrate Method for purifying titanyl hydrate

C - Chemistry, Metallurgy

01

G

23/253

C01G 23/04 (2006.01) C09C 1/36 (2006.01) C22B 34/12 (2006.01)

Patent

CA 1171239

ABSTRACT A process is provided for removing impurities from a slurry of titanyl hydrate. The titanyl hydrate is separated from the slurry, washed, and reslurried with water to make the resulting titanyl hydrate slurry fluid. The reslurried titanyl hydrate slurry is then treated by the addition of a trivalent titanium compound in an amount between about 0.01 grams and about 0.7 grams trivalent titanium compound measured as TiO2 per 100 grams titanyl hydrate as calcined TiO2 in the absence of additional acid values. The titanyl hydrate is then separated from the treated slurry, washed and recovered.

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