Process for upgrading titaniferous materials

Details Process for upgrading titaniferous materials Process for upgrading titaniferous materials

C - Chemistry, Metallurgy

22

B

C22B 34/12 (2006.01) C09C 1/36 (2006.01) C22B 3/06 (2006.01) C22B 3/12 (2006.01) C22B 5/12 (2006.01)

Patent

CA 2162266

A process for removing impurities from a titaniferous material that has been subjected to thermal reduction is disclosed. The process comprises the steps of: (i) subjecting the thermally reduced titaniferous material to a secondary heat treatment to convert it to a leachable form in which impurities present therein are more readily leachable; (ii) cooling the product of step (i); (iii) leaching the cooled heat treated titaniferous material in an aqueous acid solution that is capable of dissolving at least a portion of any impurities contained in the titaniferous material to form a leachate; and (iv) separating the leachate from the titaniferous material.

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