Process for the removal of cyanide and other impurities from sol

Details Process for the removal of cyanide and other impurities from sol Process for the removal of cyanide and other impurities from sol

1988-05-03

1989-06-20

Hruskoci, Peter

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210724, 210726, 210759, 210904, 210912, 423 87, 423 55, 423367, C02F 152

Patent

active

048407356

ABSTRACT:
A process for the removal of cyanide and other impurities from an aqueous solution is disclosed. The process comprises adding copper ion and ferrous ion as reagents to the solution at a pH of about 4 to 8 with a ratio of copper to cyanide in the range of 3:1 to 10:1 by weight and with a ratio of iron to copper of at least 0.3:1 by weight.

REFERENCES:
patent: 3617567 (1971-11-01), Mathre
patent: 4070281 (1978-01-01), Tagashira et al.
patent: 4211646 (1980-07-01), Westbrook et al.
patent: 4428840 (1984-01-01), Mudder et al.
patent: 4537686 (1985-08-01), Borbely et al.
patent: 4615873 (1986-10-01), Devuyst et al.
patent: 4622149 (1986-11-01), Devuyst et al.

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