Process for recovering zinc sulphide from zinc sulphide...

Details Process for recovering zinc sulphide from zinc sulphide... Process for recovering zinc sulphide from zinc sulphide...

B - Operations, Transporting

03

D

361/3

B03D 1/02 (2006.01) B03B 1/02 (2006.01) B03D 1/014 (2006.01) C01G 9/08 (2006.01)

Patent

CA 1084178

PROCESS FOR RECOVERING ZINC SULPHIDE FROM ZINC SULPHIDE CONTAINING CONCENTRATES ABSTRACT OF THE DISCLOSURE: A process for recovering zinc sulphide from zinc sulphi- de containing concentrates is disclosed. The process comprises subjecting the concentrate to aeration in an aqueous medium at a temperature higher than 50°C in the presence of lime; floating zinc sulphide as a rougher concentrate in the presence of copper sulphate and a suitable flotation collector; grinding the zinc sulphide rougher concentrate; reaerating the ground concentrate in an aqueous medium at a temperature higher than 50°C in the presen- ce of lime; and cleaning the pulp by flotation in the presence of copper sulphate and a suitable flotation collector.

290228

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