Recovery of silver from cuprous chloride solutions by co-crystal

Details Recovery of silver from cuprous chloride solutions by co-crystal Recovery of silver from cuprous chloride solutions by co-crystal

1977-01-17

1978-07-18

Vertiz, O. R.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75108, 75117, 75118R, 75109, 423 34, 423 42, 423493, C22B 1512, C22B 1104, C01G 500

Patent

active

041013158

ABSTRACT:
A process for recovering silver present in cuprous chloride solutions as a soluble silver chloride which comprises saturating the cuprous chloride solution with sodium chloride, subjecting the saturated solution to evaporation to co-crystallize the sodium chloride and silver chloride, separating the solid chlorides from the liquid, recovering silver from the sodium chloride-silver chloride crystals and reclaiming the sodium chloride, adding water to the liquid and cooling it to crystallize cuprous chloride. The procedure is adaptable to processes for recovering copper from its ores in which copper is reduced to cuprous chloride in a leach slurry followed by cooling the leach slurry to crystallize out the cuprous chloride from which copper is recovered by conventional techniques.

REFERENCES:
patent: 176813 (1976-05-01), Rogers
patent: 3323875 (1967-06-01), Been
patent: 3655333 (1972-04-01), Stenger
patent: 3885921 (1975-05-01), Matsamoto
patent: 3972711 (1976-08-01), Goens et al.
Mellor, Inorganic and Theoretical Chemistry, vol. 3, Longmans Green, pp. 162, 163.

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