Process for electrolytically producing metals of Ni, Co, Zn, Cu,

Details Process for electrolytically producing metals of Ni, Co, Zn, Cu, Process for electrolytically producing metals of Ni, Co, Zn, Cu,

1987-02-12

1988-12-06

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204106, 204108, 204112, 204113, 204114, 204118, 204105M, 204105R, 423139, C25C 112

Patent

active

047894440

ABSTRACT:
Process for electrolytically producing metals of Ni, Co, Zn, Cu, Mn, and Cr, comprising, electrolyzing an aqueous solution containing ions of a metal as main component selected from Ni, Co, Zn, Cu, Mn, and Cr in a cathode compartment to deposit the metal electrolytically on a cathode, the cathode compartment being separated by one or more diaphragms from the remainder of the solution where iron or a metal containing iron is used for material of corrosible anode, and maintaining the concentration of iron ion in the solution circulating in the anode compartment at a low level by bringing the whole or a part of the circulating solution into contact with an organic solvent which is prepared by adding petroleum hydrocarbon for dilution of one or more extracting agents selected from the group consisting of carboxylic acids, alkylaryl phosphoric acids, hydroxyoximes, alkyl phosphoric acids, alkylamines, ketones, alkylamides, and neutral phosphoric acid esters, to extract and remove the iron or the chloro-complex ions.

REFERENCES:
patent: 4082832 (1978-04-01), Watanabe et al.
patent: 4113588 (1978-09-01), Watanabe et al.
patent: 4434002 (1984-02-01), Watanabe et al.
patent: 4497655 (1985-02-01), Watanabe et al.

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