Cuprous chloride production from chalcopyrite

Details Cuprous chloride production from chalcopyrite Cuprous chloride production from chalcopyrite

C - Chemistry, Metallurgy

22

B

53/287

C22B 3/00 (2006.01) C01G 3/05 (2006.01) C22B 15/00 (2006.01)

Patent

CA 1177653

CUPROUS CHLORIDE PRODUCTION FROM CHALCOPYRITE Abstract A process is disclosed for producing cuprous chloride from chalcopyrite by means of a cupric chloride leach utilizing particular processing conditions in order to obtain relatively high cuprous chloride concentrations. The processing conditions are maintained so as to conduct the leach in accordance with the general reaction: (3X+12Y)Cu++ + CuFeS2 + 8YH20 ? (4X+12Y)Cu++ + XFe++ + (2X-2Y)S° + 2YSO4= + 16YH+ + (l-X)CuFeS2 under reaction conditions such that "X" is maintained from about 0.35 to about 0.9, "Y" is maintained from about 0.075 to about 0.35 and the sum of 3X + 12Y is initially greater than 3.

382241

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