Cyanide recovery process

Details Cyanide recovery process Cyanide recovery process

C - Chemistry, Metallurgy

01

C

53/370, 23/40

C01C 3/08 (2006.01) C22B 3/04 (2006.01) C22B 11/08 (2006.01)

Patent

CA 1318768

Abstract A process for removing and recovering cyanide from a cyanide-containing mixture. The process includes the steps of adjusting the pH of the cyanide-containing mixture to between about 6 and about 9.5, volatilizing the HCN contained in the pH adjusted mixture and contacting the volatilized HCN with basic material. Preferably, the cyanide recovery process is performed on tailings slurries resulting from metal recovery processes.

612912

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