Method for purifying tio _ore by alternating acid and base...

Details Method for purifying tio _ore by alternating acid and base... Method for purifying tio _ore by alternating acid and base...

C - Chemistry, Metallurgy

22

B

53/157

C22B 34/12 (2006.01) C22B 3/04 (2006.01) C22B 3/06 (2006.01) C22B 3/14 (2006.01)

Patent

CA 1337847

Process for purifying TiO2 ore consisting essentially of subjecting the ore to two or more leaching treatments, said leaching treatments alternating between use of an aqueous solution of a mineral acid and an aqueous solution of an alkali metal compound selected from the group consisting essentially of alkali metal carbonates, hydroxides or mixtures thereof.

606315

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