Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1981-07-17
1982-12-07
Andrews, R. L.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204117, 204118, 75 92, 75101BE, 75114, C25C 112, C25C 116, C25C 118
Patent
active
043626076
ABSTRACT:
The solvent extraction separation and recovery of copper and zinc from complex chloride liquors; e.g. those resulting from the low temperature chlorination and leach of a copper-lead-zinc sulphide ore or concentrate; are described, including the selection of sequence, conditions, extractants, scrubbing and stripping media and adaptations for electrowinning and recycle. High purity copper sulphate and zinc chloride electrolytes are produced for subsequent direct electrowinning. Lead may also be recovered.
REFERENCES:
patent: 3969106 (1976-07-01), Wark
patent: 4054516 (1977-10-01), Izumi et al.
patent: 4194905 (1980-03-01), Gallacher
Lucas Bernard H.
Price Kenneth T.
Ritcey Gordon M.
Andrews R. L.
Canadian Patents and Development Limited
Thomson Alan A.
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