Why Zijinshan copper bioheapleaching plant works efficiently at low microbial activity - Study on leaching kinetics of copper sulfides and its implications
文献类型：期刊论文
| 作者 | Ruan, Renman1,2; Zou, Gang1; Zhong, Shuiping1; Wu, Zengling1; Chan, Brenda1; Wang, Dianzuo3 |
| 刊名 | MINERALS ENGINEERING
 |
| 出版日期 | 2013-07-01 |
| 卷号 | 48期号:0页码:36-43 |
| 关键词 | Dissolution kinetics Digenite and covellite Column tests Bioheapleaching |
| 英文摘要 | Zijinshan commercial bioheapleaching-SX-EW plant has been in operation since December 2005. 13.9 million tonnes of low grade copper sulfide ore (Cu 0.38%) has been leached efficiently with an annual recovery of 80% in this distinct leaching system with high iron concentration, high temperature, high acidity and low microbial activity. This paper is to study the key factors which influence the heap operation in Zijinshan. Dissolution kinetics of diginite and covellite was carried out in acid ferric sulfate solution under controlled redox potential. Moreover, column bioleaching tests were conducted in the laboratory with raffinate from the plant. Both results showed that the main factors accelerating dissolution rate of Cu1.8S/CuS were mainly temperature and ferric concentration, while redox potential only had a slight positive effect. The present work provides an insight into mineral kinetics to understand this unique bioheapleaching operation and gives further information for optimization of the existing practices. (c) 2013 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Engineering, Chemical ; Mineralogy ; Mining & Mineral Processing |
| 研究领域[WOS] | Engineering ; Mineralogy ; Mining & Mineral Processing |
| 关键词[WOS] | THIOBACILLUS-FERROOXIDANS ; FERRIC SULPHATE ; LOW PH ; COVELLITE ; DISSOLUTION ; IRON |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000321167400007 |
| 公开日期 | 2015-05-27 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/13640]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Zijin Min Grp Co Ltd, State Key Lab Gold Extract, Shanghang 364200, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 3.Cent S Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ruan, Renman,Zou, Gang,Zhong, Shuiping,et al. Why Zijinshan copper bioheapleaching plant works efficiently at low microbial activity - Study on leaching kinetics of copper sulfides and its implications[J]. MINERALS ENGINEERING,2013,48(0):36-43. |
| APA | Ruan, Renman,Zou, Gang,Zhong, Shuiping,Wu, Zengling,Chan, Brenda,&Wang, Dianzuo.(2013).Why Zijinshan copper bioheapleaching plant works efficiently at low microbial activity - Study on leaching kinetics of copper sulfides and its implications.MINERALS ENGINEERING,48(0),36-43. |
| MLA | Ruan, Renman,et al."Why Zijinshan copper bioheapleaching plant works efficiently at low microbial activity - Study on leaching kinetics of copper sulfides and its implications".MINERALS ENGINEERING 48.0(2013):36-43. |
入库方式： OAI收割
来源：过程工程研究所
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