Refining of manganese oxide ores

Details Refining of manganese oxide ores Refining of manganese oxide ores

C - Chemistry, Metallurgy

22

B

53/173

C22B 47/00 (2006.01) C22B 3/00 (2006.01)

Patent

CA 1060215

A B S T R A C T This invention provides a method for treating manganese oxide ores in an aqueous medium, with hydrogen halide or sulfuric acid, and a hydrogen sulfide or a metal sulfide, e.g. an ore. A leach liquor containing the desirable metal halides is then separated from the solid, insoluble residue. Any iron value in either the manganese oxide ore or in any metal sulfide ore present is not dissolved or is converted to an insoluble iron oxide. Elemental sulfur is also obtained.

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