Specialized metallurgical processes – compositions for use therei – Compositions – Solid treating composition for liquid metal or charge
Patent
1988-08-03
1990-10-09
Stoll, Robert L.
Specialized metallurgical processes, compositions for use therei
Compositions
Solid treating composition for liquid metal or charge
75747, 75735, 75737, 75324, 423 29, C22B 1100
Patent
active
049617770
ABSTRACT:
An agglomerative heap leaching method for recovering gold, silver or other metals from low grade refractory ores. Hypochlorite compounds are incorporated directly into the ore agglomerates as they are formed. This provides ample time and opportunity for the hypochlorite to destroy, modify or passivate refractory components of the ore thereby improving metal recovery in the subsequent cyanide leaching step.
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"Silver and Gold Recovery from Low-Grade Resources", by McClelland, et al., Mining Congress Journal, 1981, pp. 17-19.
Barrois Melvin J.
McCord Thomas H.
O'Neil Gregory R.
Perez Jesus W.
Bos Steven J.
Freeport-McMoRan, Inc.
Stoll Robert L.
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