Process for obtaining metal values by leaching raw sea nodules

Details Process for obtaining metal values by leaching raw sea nodules Process for obtaining metal values by leaching raw sea nodules

C - Chemistry, Metallurgy

22

B

53/369

C22B 7/00 (2006.01) C22B 3/00 (2006.01) C22B 47/00 (2006.01)

Patent

CA 1077725

Abstract of the Disclosure Metal values are extracted from a manganiferous oxide ore, particularly sea nodules, containing non-ferrous metal values selected from the group consisting of nickel, cobalt and copper, by leaching the raw ore in an acidic medium under atmospheric pressure and in the presence of a sulfide to reduce the tetravalent manganese to the soluble divalent state, thereby oxidizing the sulfide to elemental sulfur, and simultaneously to solubilize metal values in the leach solution.

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