Hydrometallurgical extraction process

Details Hydrometallurgical extraction process Hydrometallurgical extraction process

1994-03-25

1995-05-02

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75735, 75737, 423 29, C22B 1108

Patent

active

054115752

ABSTRACT:
A hydrometallurgical process for treating copper ores or concentrates containing gold by simultaneously leaching both copper and gold into an aqueous cyanide solution, recovering copper and gold in metallic form by electrowinning or cementation and regenerating cyanide ions is provided.

REFERENCES:
patent: 2112298 (1938-03-01), Mills
patent: 2124421 (1938-07-01), Klein
patent: 4681628 (1987-07-01), Griffin
patent: 5078977 (1992-01-01), Mudder
Scerescini, B. "The Mt. Gibson Process". AMMTEC Pty Ltd. Processing of Gold-Copper Ores (Practical Aspects): Jul. 4, 1991, pp. 39-41.
LaBrooy, S. R. "Copper-Gold Ore Treatment Options and Status" Randol Gold Forum Vancouver '92, Randol International: Golden, Colo. pp. 173-177.
Muir, D. M., LaBroy, S. R., Fenton, K., "Processing Copper-Gold Ores with Ammonia or Ammonia-Cyanide Solutions", World Gold '91, AusIMM: Victoria, Australia, pp. 145-150.

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