Ecologically safe technology for extraction of nonferrous metals from sulfide raw materials by means of bacterial leaching.

被引：0
|
作者：
Slavkina, O [1 ]
Fomchenko, N [1 ]
Biryukov, V [1 ]
机构：
[1] Moscow State Univ Environm Engn, Moscow 107066, Russia
来源：
METALLURGICAL AND MATERIALS PROCESSING: PRINCIPLES AND TECHNOLOGIES: AQUEOUS AND ELECTROCHEMICAL PROCESSING | 2003年
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D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A new technology of bacterial leaching by means of the Thiobacillus ferrooxidance bacteria is proposed. The equations of reactions that describe of the first and the second stage of bacterial leaching of sulfide raw materials containing non-ferrous metals are given. The theory is analyzed and the technology of processing of some complicated substandard concentrate containing copper and zinc is proposed. The main technological operations including a two-stage bacterial leaching and stages of copper and zinc recovery in the form of marketable product are described. The results of the experimental validation of the main technological parameters of the first stage are given. The main possibilities of a more complete zinc and copper recovery at the second stage of bacterial leaching are discussed in comparison with single-stage leaching process.
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页码：337 / 347
页数：11
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