Knowledge Management System Of Shanghai Institute of Applied Physics, CAS
| Comparative study of S, Fe and Cu speciation transformation during. chalcopyrite bioleaching by mixed mesophiles and mixed thermophiles | |
| Liu, HC; Xia, JL; Nie, ZY; Liu, LZ; Wang, L; Ma, CY; Zheng, L; Zhao, YD; Wen, W | |
| 2017 | |
| Source Publication | MINERALS ENGINEERING
 |
| ISSN | 0892-6875 |
| Volume | 106Pages:22-32 |
| Subtype | 期刊论文 |
| Abstract | 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. |
| Keyword | Bioleaching Mixed Culture Chalcopyrite Chemical Speciation Intermediates |
| DOI | 10.1016/j.mineng.2017.01.013 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000399518800006 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/27277 |
| Collection | 中科院上海应用物理研究所2011-2020年 |
| Recommended Citation GB/T 7714 | Liu, HC,Xia, JL,Nie, ZY,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 | Liu, HC.,Xia, JL.,Nie, ZY.,Liu, LZ.,Wang, L.,...&Wen, W.(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 | Liu, HC,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. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Comparative study of（2019KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment