Method of removing ferrocyanide ions from rinse water of an alka

Details Method of removing ferrocyanide ions from rinse water of an alka Method of removing ferrocyanide ions from rinse water of an alka

1980-07-23

1982-04-13

Hruskoci, Peter A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210724, 210739, 210754, 423367, C02F 152

Patent

active

043246664

ABSTRACT:
A method of removing ferrocyanide ions from the rinse water of an alkaline cyanide metal plating process which comprises adding a sufficient amount of manganous ions to the rinse water containing ferrocyanide ions to form a water insoluble precipitate of manganous ferrocyanide [Mn.sub.2 Fe (CN).sub.6 ] which can be readily separated from the rinse water.

REFERENCES:
patent: 3427256 (1969-02-01), Milgrom
patent: 3843516 (1974-10-01), Yamada et al.
patent: 4038160 (1977-07-01), Crowther et al.
patent: 4043907 (1977-08-01), Shimamura et al.

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