Sulfide as a hypochlorite kill agent

Details Sulfide as a hypochlorite kill agent Sulfide as a hypochlorite kill agent

B - Operations, Transporting

01

D

53/229, 53/371

B01D 11/00 (2006.01) C22B 11/08 (2006.01)

Patent

CA 1245459

ABSTRACT Residual hypochlorite contained in chlorinated slurries of either carbonaceous gold-containing ores or mixtures of carbonaceous and oxide gold-containing ores are reduced by reaction with sulfide ion-providing chemical compounds preferably sodium hydrosulfide, sodium sulfide or hydrogen sulfide. The hypochlorite "kill" step enables subsequent cyanide leach operations to be conducted more efficiently.

490922

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