Acid equilibrium during bioleaching of alkaline low-grade sulfide copper ore

被引:0
|
作者
WEN Jiankang
机构
关键词
bioleaching; alkaline low-grade copper sulfide ore; acid equilibrium; process mineralogy; auxiliary agent;
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中图分类号
TF811 [铜];
学科分类号
080603 ;
摘要
This article reports the study on acid equilibrium during bioleaching of alkaline low-grade copper sulfide ore. Adding auxiliary agents 1# (sulfur) and 2# (pyrite) makes bacterial leaching of copper and acid production carried out si- multaneously because the auxiliary agents can be oxidized by bacteria and the oxidation products involve acid. The acid required for dissolving alkaline gangue during bacterial leaching is produced, and acid equilibrium is reached during the ore bio-leaching. The recovery of copper reaches more than 95%.
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页码:680 / 686
页数:7
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