Process for leaching raw sea nodules

Details Process for leaching raw sea nodules Process for leaching raw sea nodules

C - Chemistry, Metallurgy

22

B

53/112, 53/173,

C22B 47/00 (2006.01) C01G 45/00 (2006.01)

Patent

CA 1074568

ABSTRACT OF THE DISCLOSURE A process for extracting metal values from sea nodules is provided in which nickel, cobalt and copper values are selectively extracted by leaching raw sea nodules in an aqueous ammoniacal medium in the presence of a reducing agent for tetravalent manganese and carbonate to precipitate the reduced manganese as manganous carbonate.

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