METHOD OF RECYCLING CYANIDES IN PRECIOUS METAL RECOVERY CIRCUIT Russian patent published in 1998 - IPC

Abstract RU 2103398 C1

FIELD: precious metal metallurgy. SUBSTANCE: method of recycling hydrogen cyanide from cyanide-containing slime includes following steps: adjusting pH value of cyanide-containing slime, vaporizing hydrogen cyanide contained in the lime with preset pH, and bringing hydrogen cyanide in contact with slime containing precious metals to recover the latter. Hydrogen cyanide may also be brought in contact with recycle water or with decantation water to isolate cyanide and preserve resources. EFFECT: improved procedure. 14 cl

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RU 2 103 398 C1

Authors

Terri Dzh.Madder[Us]

Adrian Dzhejms Goldstoun[Nz]

Dates

1998-01-27Published

1993-01-04Filed