Bio-oxidation of a high-sulfur refractory gold concentrate with a two-stage chemical-biological approach

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作者信息关键词期刊信息基础信息归属信息摘要

成果类型：

期刊论文

作者：

Wang, Guohua;Liu, Xinxing;Wu, Yonghong;Zeng, Taotao;Li, Shiyou;...

通讯作者：

Xie, Shuibo

作者机构：

[Xie, Shuibo; Liu, Yingjiu; Liu, Jinxiang; Zeng, Taotao; Li, Shiyou; Wang, Guohua] Univ South China, Hunan Prov Key Lab Pollut Control & Resources Reu, Hengyang 421001, Peoples R China.

[Liu, Xinxing; Wu, Yonghong] Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China.

[Liu, Xinxing; Wu, Yonghong] Cent South Univ, Key Lab Biohydromet, Minist Educ, Changsha 410083, Peoples R China.

[Xie, Shuibo] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Peoples R China.

通讯机构：

[Xie, Shuibo] U

Univ South China, Hunan Prov Key Lab Pollut Control & Resources Reu, Hengyang 421001, Peoples R China.

语种：

英文

关键词：

Two-stage approach;Bio-oxidation;Pyrite;Refractory gold concentrate

期刊：

Hydrometallurgy

ISSN：

0304-386X

年：

2020

卷：

197

页码：

105421

DOI：

10.1016/j.hydromet.2020.105421

基金类别：

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC); NSFCNational Natural Science Foundation of China (NSFC) [11475080, 51904155, 51320105006]

机构署名：

本校为第一且通讯机构

院系归属：

土木工程学院

核资源工程学院

摘要：

A two-stage chemical-biological oxidation approach, which applied a high temperature chemical oxidation stage prior to the bio-oxidation stage, was employed to accelerate the bio-oxidation rate of Axi gold concentrate with pyrite as the main sulfide phase. The extraction levels of Fe and S were 67.0% and 72.9% in the traditional one-stage bio-oxidation approach, while the values were elevated respectively to 78.0% and 79.6% with the two-stage approach. Accordingly, the extraction rate of gold was increased from 83.6% to 90.3% when subjected to ...

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Bio-oxidation of a high-sulfur refractory gold concentrate with a two-stage chemical-biological approach

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