METHOD OF EXTRACTION PURIFICATION OF ZINC-CONTAINING SOLUTIONS FROM COPPER Russian patent published in 1994 - IPC

Abstract RU 2013455 C1

FIELD: electrolysis. SUBSTANCE: method involves grouped extraction of zinc and copper into organic phase of di-2-ethylhexylphosphoric acid following by copper isolation into aqueous phase. The latter process is carried out with aqueous solution of thiosulfate, for example, sodium thiosulfate (concentration is 5-8% ). EFFECT: improved method of purification. 2 cl, 1 tbl

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RU 2 013 455 C1

Authors

Kirbitova N.V.

Reznikova N.N.

Boriskov F.F.

Dates

1994-05-30—Published

1991-04-18—Filed