Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1977-01-17
1978-11-07
Andrews, M. J.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75109, C22B 1100
Patent
active
041243790
ABSTRACT:
A process for recovering silver from chloride solutions comprising contacting the solution with amalgams of various metals from Groups 2b, 4a, 5a, or 8b of the periodic table or copper to replace the metal with silver and recovering silver from the formed silver amalgam. The process provides an improvement in the process for recovering copper from its ores in which the copper in the ore is solubilized as cuprous copper in a leach liquor and the copper recovered from the leach liquor as cuprous chloride by crystallization, the improvement being the removal of silver from the leach liquor prior to crystallization by use of the amalgam to produce substantially silver-free cuprous chloride crystals.
REFERENCES:
patent: 1429131 (1922-09-01), Field
patent: 3972711 (1976-08-01), Goens et al.
Kazel William G.
Peters Mark A.
Andrews M. J.
Cyprus Metallurgical Processes Corporation
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