Comparative study of S, Fe and Cu speciation transformation during. chalcopyrite bioleaching by mixed mesophiles and mixed thermophiles
文献类型：期刊论文
| 作者 | Nie, ZY; Liu, LZ; Wang, L; Zhao YD(赵屹东) ; Zheng L(郑雷); Ma CY(马陈燕); Ma, CY; Zheng, L; Zhao, YD; Liu, HC
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| 刊名 | MINERALS ENGINEERING
 |
| 出版日期 | 2017 |
| 卷号 | 106页码:22-32 |
| 关键词 | Bioleaching Mixed culture Chalcopyrite Chemical speciation Intermediates |
| ISSN号 | 0892-6875 |
| DOI | 10.1016/j.mineng.2017.01.013 |
| 文献子类 | Article; Proceedings Paper |
| 英文摘要 | The bioleaching experiments of chalcopyrite were conducted with mixed mesophilic culture (30 degrees C), moderately thermophilic culture (45 degrees C) and extremely thermophilic culture (65 degrees C), respectively. During bioleaching, the S/Fe/Cu speciation was analyzed by synchrotron radiation (SR) based X-ray diffraction (XRD) and S, Fe and Cu K-edge X-ray absorption near edge structure (XANES) spectroscopy. The results showed that the chalcopyrite dissolution could be significantly promoted by these mixed cultures, and the promotion effects were enhanced with the increase of bioleaching temperature. For all bioleaching tests, the formation of intermediates S, jarosite and secondary minerals (chalcocite, bornite and covellite) was detected, in which the formation of bornite, chalcocite and covellite was just related with redox potential. The formation of bomite could accelerate chalcopyrite dissolution, while the decrease of bioleaching microorganisms could reduce chalcopyrite dissolution. (C) 2017 Elsevier Ltd. All rights reserved. |
| 会议地点 | Falmouth, ENGLAND |
| WOS关键词 | EXTRACELLULAR THIOL-GROUPS ; SULFURIC-ACID-SOLUTION ; ACIDITHIOBACILLUS-FERROOXIDANS ; ACIDIANUS-MANZAENSIS ; SULFOBACILLUS-THERMOSULFIDOOXIDANS ; ELECTROCHEMICAL DISSOLUTION ; DIFFERENTIAL UTILIZATION ; HINDERED DISSOLUTION ; SURFACE-LAYERS ; MU-S |
| 会议日期 | JUN, 2016 |
| WOS研究方向 | Engineering ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000399518800006 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285194]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_加速器中心 高能物理研究所_东莞分部 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Nie, ZY,Liu, LZ,Wang, L,et al. Comparative study of S, Fe and Cu speciation transformation during. chalcopyrite bioleaching by mixed mesophiles and mixed thermophiles[J]. MINERALS ENGINEERING,2017,106:22-32. |
| APA | Nie, ZY.,Liu, LZ.,Wang, L.,赵屹东.,郑雷.,...&Xia, JL.(2017).Comparative study of S, Fe and Cu speciation transformation during. chalcopyrite bioleaching by mixed mesophiles and mixed thermophiles.MINERALS ENGINEERING,106,22-32. |
| MLA | Nie, ZY,et al."Comparative study of S, Fe and Cu speciation transformation during. chalcopyrite bioleaching by mixed mesophiles and mixed thermophiles".MINERALS ENGINEERING 106(2017):22-32. |
入库方式： OAI收割
来源：高能物理研究所
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