Original scientific paper

A study of the biohydrometallurgical method for extracting gold from flotation tailings

A. K. Koizhanova ; Satbayev University, JSC “Institute of Metallurgy and Ore Beneficiation”, Almaty, Republic of Kazakhstan
B. K. Kenzhaliyev ; Satbayev University, JSC “Institute of Metallurgy and Ore Beneficiation”, Almaty, Republic of Kazakhstan
D. R. Magomedov ; Satbayev University, JSC “Institute of Metallurgy and Ore Beneficiation”, Almaty, Republic of Kazakhstan
E. M. Kamalov ; Satbayev University, JSC “Institute of Metallurgy and Ore Beneficiation”, Almaty, Republic of Kazakhstan
M. B. Erdenova ; Satbayev University, JSC “Institute of Metallurgy and Ore Beneficiation”, Almaty, Republic of Kazakhstan
N. N. Abdyldaev ; Satbayev University, JSC “Institute of Metallurgy and Ore Beneficiation”, Almaty, Republic of Kazakhstan

Abstract

This paper shows the results of the comparative study of efficiency of gold extraction methods from technogenic flotation tails by agitation cyanidation and biooxidation followed by leaching. A representative sample of flotation tails was taken at gold extraction plant of Altyntau Kokshetau LLP. Experimentally, an increase in the efficiency of leaching gold from flotation tails during preliminary bacterial oxidation was found. By biochemical leaching, 72 % was extracted, which is 7 % more than using expensive sodium peroxide and 10 % more than using the traditional method of cyanidation.

Keywords

gold hydrometallurgy; flotation tails; extraction; bio-leaching; research

Hrčak ID:

241164

URI

https://hrcak.srce.hr/241164

Publication date:

1.10.2020.

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