Process for electrolytically producing metals of ni, co, zn,...

Details Process for electrolytically producing metals of ni, co, zn,... Process for electrolytically producing metals of ni, co, zn,...

C - Chemistry, Metallurgy

25

C

204/76.6

C25C 1/00 (2006.01)

Patent

CA 1310294

ABSTRACT OF THE DISCLOSURE 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 a corrodible anode made of iron or an iron-containing alloy is used, 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 in the form of chloro-complex ions.

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