METHOD OF EXTRACTING GOLD FROM COPPER-CONTAINING SULPHIDE MATERIAL VIA CYANIDATION Russian patent published in 2019 - IPC C22B11/08 

Abstract RU 2704946 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy of noble metals and is used for extraction of gold from copper-containing sulphide raw material by cyanidation while stirring. In leaching reagent (NaCN or other cyanide) is fed into head units of cyanidation, then conditioning is carried out by pulp agitation for 4–72 hours without supply of reagents with subsequent scalding of liquid phase of pulp.

EFFECT: considerable increase of weight ratio of gold in saturated sorbents, productive cement and cathode sediments, and also reduction of consumption of reagents for neutralization of cyanide wastes.

3 cl, 2 tbl, 2 ex

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RU 2 704 946 C1

Authors

Byvaltsev Aleksandr Vladimirovich

Khmelnitskaya Olga Davydovna

Marinyuk Zinaida Andreevna

Dates

2019-10-31Published

2019-03-21Filed