METHOD OF REPROCESSING OF CYANIDE LIQUIDS AND PULPS CONTAINING GOLD Russian patent published in 1995 - IPC

Abstract SU 1438258 A1

FIELD: hydrometallurgy of gold. SUBSTANCE: gold from cyanide liquid is sorbed on activated coal by countercurrent method, and then gold from coal is desorbed with 0.04% alkali solution for 4 h. The content of metallic gold in desorbed coal is 0.15 mg/g. Desorbed coal is treated with 0.1% sodium cyanide for 1 h. As a result, gold is reprecipitated on coal in the form of cyanide complex which does not interfere the gold sorption from "tail" technological liquid in the process of regenerated coal recovery. EFFECT: simplified process, decreased price. 1 tbl

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SU 1 438 258 A1

Authors

Chernov V.K.

Vojloshnikov G.I.

Rashchenko A.F.

Khomutov V.V.

Dates

1995-01-09Published

1986-06-27Filed