Process for the removal of cyanide and other impurities from...

C - Chemistry – Metallurgy – 02 – F

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C02F 1/62 (2006.01) C02F 1/58 (2006.01) C02F 1/70 (2006.01) C02F 9/00 (2006.01) C02F 1/72 (2006.01)

Patent

CA 1321429

-14- Abstract of the Disclosure 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.

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