Process for the production of titanium dioxide

Details Process for the production of titanium dioxide Process for the production of titanium dioxide

C - Chemistry, Metallurgy

22

B

23/261

C22B 34/12 (2006.01) C01B 17/90 (2006.01) C01G 23/053 (2006.01)

Patent

CA 1293356

A process for the production of titanium dioxide Abstract of the Disclosure The present invention relates to a process for the production of titanium dioxide by discontinuous digestion of titanium slag with sulphuric acid, production of a titanyl sulphate solution suitable for hydrolysis from the solid digestion cake obtained during digestion, hydrolysis of the titanyl sulphate, separation and calcination of the titanium-containing hydrolyzate, evaporation of the waste acid separated from the hydrolyzate and re-use of the sulphuric acid separated from the evaporated waste acid in the digestion of titanium slag.

506345

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