SELECTIVE CYCLIC BIOLEACHING OF A COPPER-ZINC SULFIDE CONCENTRATE

被引：13

作者：

CARRANZA, F

GARCIA, MJ

PALENCIA, I

PEREDA, J

机构：

[1] Dpt. Chemical Engineering, Facultad de Química Universidad de Sevilla, Sevilla

来源：

HYDROMETALLURGY | 1990年 / 24卷 / 01期

关键词：

D O I：

10.1016/0304-386X(90)90076-E

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The separation of the chemical and biological stages for enhanced kinetics by delegating the role of the bacteria to regenerating the leachant for selective dissolution of zinc from a copper-zinc sulphide concentrate was investigated. The process involves the use of an acidic ferric sulphate solution as a leaching agent which is continually regenerated by fixed populations of Thiobacillus ferro-oxidans bacteria. Extraction of 80 wt% of the zinc and 22 wt% of the copper in the ore over a six hour period was achieved. A liquor suitable for zinc recovery and a copper concentrate, after solid sulphur and lead sulphate separation, were produced. © 1990.

引用

页码：67 / 76

页数：10

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