C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 3/18 (2006.01) C12S 99/00 (2010.01) C12S 13/00 (2006.01)
Patent
CA 2132440
A process for recovering precious or base metals from particulate refractory sulfide materials comprises: a) contacting the sulfide material with an aqueous solution containing a thermotolerant bacteria culture capable of promoting ~ dation of the sul- fide material at a temperature in the range from 25 to 55°C, b) separating the oxidized residue from the aqueous liquid, and, c) treating the oxidized residue and/or the aqueous liquid to recover metal. In this context, a thermotolerant bacterium is one which has an optimum growth temperature of 40 to 45°C, and an operating temperature of 25 to 55°C.
Barrett Jack
Budden Julia Rose
Hughes Martin Neville
Poole Robert Keith
Spencer Peter Andrew
Bac Tech (australia) Pty. Ltd.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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