Method of producing solutions containing cuprous ions

Details Method of producing solutions containing cuprous ions Method of producing solutions containing cuprous ions

1974-12-17

1976-06-29

Carter, Herbert T.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

423519, 423557, 523 41, 423 27, 423 90, 204 86, 204 92, 204 93, 204106, 203 57, 203 58, 203 33, 203 34, 203 35, 75 5A, 75108, 75117, 75118R, 75109, 75101R, C01G 310, C22B 1500, C22B 1508

Patent

active

039668908

ABSTRACT:
Methods of reducing aqueous solutions of cupric sulfate to cuprous solutions by using organic nitrile compositions are disclosed. The particular nitrile used is acetonitrile and the reductant is sulphur dioxide. The method has application commercially to leaching ores containing oxidised copper to obtain cuprous ion solutions. Such solutions can be treated by electrochemical or thermal disproportionation methods to obtain very pure copper.

REFERENCES:
patent: 3353950 (1967-11-01), Junghauss
patent: 3502551 (1970-03-01), Todt et al.
Technique of Inorg. Chem., vol. 1, John Wiley, N.Y. 1963, p. 42.

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