Solvent extraction of copper with dilution of the organic phase

Details Solvent extraction of copper with dilution of the organic phase Solvent extraction of copper with dilution of the organic phase

1975-08-05

1977-09-13

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

C01G 300

Patent

active

040482820

ABSTRACT:
A method of extracting copper from an aqueous ammoniacal leach solution which is derived from the leaching of copper dross and which contains impurity cations, comprising contacting the leach solution with a copper-selective organic phase to take copper into the organic phase and then stripping the copper from the organic phase into an aqueous phase, the organic phase being washed with a dilute acid before stripping, wherein before the organic phase is washed with the dilute acid the concentration of copper in the organic phase is reduced below a level at which poor phase separation occurs under acid conditions.

REFERENCES:
patent: 3761249 (1973-09-01), Ritcey et al.
patent: 3853981 (1974-12-01), Hadzeriga
patent: 3867506 (1975-02-01), Skarbo
patent: 3907966 (1975-09-01), Skarbo
patent: 3971652 (1976-07-01), Bryson

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