Cyanide regeneration process

Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ib metal

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Details

75737, 423 30, 423 31, 423379, C22B 1108, C01C 308

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active

049942433

ABSTRACT:
A process for removing and recovering cyanide from a cyanide-containing solution. The process includes the steps of adjusting the pH of the cyanide-containing solution to between about pH 6 and about pH 9.5, volatilizing the HCN contained in the pH adjusted solution 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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