Cyanide recovery process

Details Cyanide recovery process Cyanide recovery process

1989-10-20

1992-01-07

Langel, Wayne A.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

423 29, 423 30, 423 31, 423379, 75737, C22B 1108, C01C 308, C01C 310, C01G 700

Patent

active

050789775

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 to 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.

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