METHOD OF ISOLATION ZINC FROM AQUEOUS SOLUTIONS Russian patent published in 1997 - IPC

Abstract RU 2088542 C1

FIELD: waste utilization. SUBSTANCE: invention relates to recovering zinc from exhausted process solutions, e.g. in galvanic production. A precipitation method is involved wherein precipitation is caused by disperse aluminium in presence of sodium hydroxide taken in Zn/NaOH/Al molar ratio 1: (6-12):(1.0-2.5), which makes it possible to obtain zinc as metal powder with 95% purity fit to be used in metallurgy, galvanic technics, etc. EFFECT: achieved complete recovery of zinc. 1 tbl

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RU 2 088 542 C1

Authors

Dresvjannikov A.F.

Grigor'Eva I.O.

Dates

1997-08-27Published

1995-08-29Filed