Percolation bioleaching of copper and zinc and gold recovery from flotation tailings of the sulfide complex ores of the Ural region, Russia

被引：28

作者：

Kondrat'eva, Tamara F. ^{[1
]}

Pivovarova, Tatiana A. ^{[1
]}

Bulaev, Alexandr G. ^{[1
]}

Melamud, Vitaliy S. ^{[1
]}

Muravyov, Maxim I. ^{[1
]}

Usoltsev, Alexey V. ^{[2
]}

Vasil'ev, Evgeniy A. ^{[2
]}

机构：

[1] Russian Acad Sci, Winogradsky Inst Microbiol, Moscow 117312, Russia

[2] Uralelektromed Ltd, Res Ctr, Verkhnyaya Pyshma 624091, Russia

来源：

HYDROMETALLURGY | 2012年 / 111卷

基金：

俄罗斯基础研究基金会;

关键词：

Defined culture; Indigenous culture; Chemolithotrophic microorganisms; Flotation tailings; Copper; Zinc; Iron; Gold; Silver; Percolation leaching;

D O I：

10.1016/j.hydromet.2011.10.007

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Laboratory experiments in percolators have demonstrated effective bioleaching of copper and zinc, as well as recovery of precious metals from flotation tailings of the Svyatogor concentrator. The defined culture constructed from strains of acidophilic chemolithotrophic microorganisms exhibited higher rates of bioleaching than the indigenous culture obtained from the acid mine drainage. Treatment of the substrate with sulfuric acid (pH 1.24) resulted in recovery of 48.6% of zinc, 28.2% of copper, and 2.8% the total iron. Acidic percolation leaching and biooxidation for 134 days with the indigenous and defined cultures resulted in solubilization of 59.5 and 87.0% zinc, 46.0 and 54.5% copper, and recovery of 56.4 and 57.8% gold and 50.5 and 50.9% silver, respectively. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：82 / 86

页数：5

共 7 条

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