Recovery of silver, copper, zinc and lead from partially...

Details Recovery of silver, copper, zinc and lead from partially... Recovery of silver, copper, zinc and lead from partially...

C - Chemistry, Metallurgy

22

B

53/369

C22B 11/06 (2006.01) C22B 1/02 (2006.01) C22B 15/00 (2006.01)

Patent

CA 1131033

RECOVERY OF SILVER, COPPER, ZINC AND LEAD FROM PARTIALLY ROASTED PYRITE CONCENTRATE BY ACID CHLORIDE LEACHING Abstract of the Disclosure A process for treating a pyrite concentrate containing wilver, copper, lead and zinc to recover the metals contained therein is disclosed. The process includes the partial roasting of the concentrate to open the pyrite matrix to solution penetration followed by various hydrometallurgical steps, including oxidation and reduction leaching, solid-liquid separation and metal extraction steps, to recover the copper and silver together, and the lead and zinc separately.

324621

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