The effects of bioleaching conditions on the nonferrous metals content in copper-zinc concentrate

被引：0

作者：

N. V. Fomchenko

M. I. Muravyov

机构：

[1] Research Center of Biotechnology of the Russian Academy of Sciences,Winogradsky Institute of Microbiology

来源：

Applied Biochemistry and Microbiology | 2017年 / 53卷

关键词：

leaching; acidophilic microorganisms; biohydrometallurgy; nonferrous metals; sulfide concentrate;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The effects of pH and ferrous iron concentration in cultural medium on the bioleaching of copper-zinc concentrate by mesophilic and moderately thermophilic acidophilic microorganisms were studied. It was revealed that the optimum pH for bioleaching in presence of 5 g/L of ferrous iron was 1.4–1.5. It was shown that bioleaching under optimal conditions led to an increase in the copper content in solid phase from 10.1 to 14% and a decrease in the zinc content from 7.4 to 1.4%. The results of the present work demonstrate that acidophilic microorganisms can be used for treatment of complex sulfide concentrates containing copper and zinc.

引用

页码：448 / 452

页数：4

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