Hydrometallurgical processing of metal sulfides

Details Hydrometallurgical processing of metal sulfides Hydrometallurgical processing of metal sulfides

C - Chemistry, Metallurgy

01

B

23/110, 23/330,

C01B 17/00 (2006.01) C22B 3/14 (2006.01) C22B 15/00 (2006.01)

Patent

CA 1054778

ABSTRACT OF THE DISCLOSURE A method for recovery of both sulfur and metal values from sulfide ores comprising adding a non-sulfide metal containing material to balance the sulfide-recoverable metal mole ration in the ore to at least 1:1 while leaching the metal sulfides at a pH of at least 7 and recovering all sulfur and metal values from the leach solutions. The process provides for all sulfur recovery as sulfuric acid and is non- polluting, uses no neutralizing agents, and produces no waste products.

254813

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