Separation of sulfides by selective oxidation

Details Separation of sulfides by selective oxidation Separation of sulfides by selective oxidation

B - Operations, Transporting

03

D

361/5

B03D 1/02 (2006.01) B03D 1/012 (2006.01) B03D 1/06 (2006.01)

Patent

CA 1104274

ABSTRACT OF THE DISCLOSURE A bulk concentrate containing chalcopyrite, pentlan- dite and pyrrhotite is aerated under alkaline conditions, then subjected in turn to primary flotation, cyanide addition, condi- tioning, secondary flotation and cleaning flotation. As a result, a three-way separation is achieved to produce a copper concentrate, a high grade nickel concentrate and a third product containing most of the pyrrhotite.

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