Hydrometallurgical process for copper recovery from sulfide ores

Details Hydrometallurgical process for copper recovery from sulfide ores Hydrometallurgical process for copper recovery from sulfide ores

1975-03-19

1976-06-08

Ozaki, G.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75117, 423 27, 423604, C22B 1500

Patent

active

039619427

ABSTRACT:
Recovery of copper from sulfide ores is achieved by placing the ore together with a caustic soda or potash solution in a pressure vessel. An oxidizing gas is then introduced into the vessel and the temperature and pressure of the system is adjusted as required. Copper ions are freed from the crystalline structure in the form of the complex anion, Cu(OH).sub.4 .sup.=. The copper may then be recovered by reduction or precipitation as cupric oxide.

REFERENCES:
patent: 2165667 (1939-07-01), Traut

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