Method for recovering indium by electrowinning and apparatus the

Details Method for recovering indium by electrowinning and apparatus the Method for recovering indium by electrowinning and apparatus the

1995-02-10

1996-08-06

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic synthesis

Preparing single metal

C25C 100

Patent

active

055430317

ABSTRACT:
In order to recover indium, while preventing generation of chlorine gas, by a direct electrowinning method from a hydrochloric acid solution from which impurities have been removed by various chemical purification methods, an electrolysis is carried out by using an indium-containing hydrochloric acid solution as an electrolyte for a cathode compartment equipped with a cathode comprising an indium starting sheet, by using a sulfuric acid solution in an anode compartment equipped with an insoluble anode and separating the cathode compartment and the anode compartment with a diaphragm of a cation exchange material.

REFERENCES:
patent: 2052387 (1936-08-01), Doran
patent: 3523880 (1970-08-01), Parsi
patent: 4609443 (1986-09-01), Nogueira

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