Solvent extraction and electrowinning of zinc and copper from su

Details Solvent extraction and electrowinning of zinc and copper from su Solvent extraction and electrowinning of zinc and copper from su

1975-08-21

1976-11-02

Thomas, Earl C.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204119, 423 24, 423100, C25C 112, C25C 116

Patent

active

039896072

ABSTRACT:
A process for separating zinc and copper values from an aqueous solution of copper and zinc salts having a pH of between about 0.5 and 6 is provided comprising:
A. contacting said aqueous solution with the copper salt of di-(2-ethylhexyl) phosphoric acid to form a zinc-containing organic phase and a copper-containing aqueous phase;
B. separating said zinc-containing organic phase from said copper-containing aqueous phase; and
C. stripping said organic phase to form a solution of a zinc salt and di-(2-ethylhexyl) phosphoric acid.

REFERENCES:
patent: 3573182 (1971-03-01), Churchward et al.
patent: 3666446 (1972-05-01), Cook et al.
Solvent Extraction, vol. II Society of Chemical Industry, London, pp. 1380-1381.

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