PROCESSING METHOD OF ARIZONITE AND ILMENITE CONCENTRATES Russian patent published in 2013 - IPC C22B34/12 C22B3/10 

FIELD: metallurgy.

SUBSTANCE: processing method of arizonite and ilmenite concentrates involves processing of initial concentrate by leaching of hydrochloric acid with a solution at controlled pressure and temperature in a closed volume at temperatures higher than 99°C. After leaching is completed, extraction of the deposit enriched in titanium and its treatment is performed. Prior to leaching, initial concentrate is subject to preliminary mechanical activation till the level providing extraction of not less than 85% of iron and not more than 5% of titanium to the solution.

EFFECT: selective extraction to the solution of iron compounds and other impurities, which are contained in ilmenite and arizonite concentrates at minimum losses to the solution of titanium being a valuable component.

7 cl, 1 tbl, 9 ex