Investigation of the sulfur speciation during chalcopyrite leaching by moderate thermophile Sulfobacillus thermosulfidooxidans
文献类型：期刊论文
| 作者 | Xia, JL; Yang, Y; He, H; Liang, CL; Zhao, XJ; Zheng, L; Ma, CY; Zhao, YD; Nie, ZY; Qiu, GZ |
| 刊名 | INTERNATIONAL JOURNAL OF MINERAL PROCESSING
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| 出版日期 | 2010 |
| 卷号 | 94期号:1-2页码:#REF! |
| 关键词 | Sulfur speciation Bioleaching Chalcopyrite Sulfobacillus thermosulfidooxidans XANES |
| 通讯作者 | Xia, JL (reprint author), Cent S Univ, Sch Minerals Proc & Bioengn, Key Lab Biomet, Minist Educ China, Changsha 410083, Peoples R China. |
| 英文摘要 | The surface sulfur speciation of chalcopyrite leached by moderately thermophilic Sulfobacillus thermosulfidooxidans was investigated by employing scanning electron microscopy (SEIM), X-ray diffraction (XRD) and sulfur K-edge X-ray absorption near edge structure spectroscopy (XANES), accompanying with the leaching behavior elucidation. Leaching experiment showed that there was an optimum range of the redox potential for chalcopyrite dissolution. Leaching products were found accumulating during the leaching process, which might be jarosite according to the XRD analysis. The sulfur K-edge spectra indicated that chalcocite might be the intermediate sulfur compound under a critical redox potential, which might explain the existence of optimum range of the redox potential and provide an evidence for the two-step leaching model of chalcopyrite at low Eh. In addition, the results of sulfur K-edge spectra showed jarosite would accumulate on mineral surface, which might be the main component of the passivation layer. (C) 2009 Elsevier B.V. All rights reserved. |
| 学科主题 | Engineering; Mineralogy; Mining & Mineral Processing |
| 类目[WOS] | Engineering, Chemical ; Mineralogy ; Mining & Mineral Processing |
| 收录类别 | SCI |
| WOS记录号 | WOS:000275258600007 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/225771]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Xia, JL,Yang, Y,He, H,et al. Investigation of the sulfur speciation during chalcopyrite leaching by moderate thermophile Sulfobacillus thermosulfidooxidans[J]. INTERNATIONAL JOURNAL OF MINERAL PROCESSING,2010,94(1-2):#REF!. |
| APA | Xia, JL.,Yang, Y.,He, H.,Liang, CL.,Zhao, XJ.,...&赵屹东.(2010).Investigation of the sulfur speciation during chalcopyrite leaching by moderate thermophile Sulfobacillus thermosulfidooxidans.INTERNATIONAL JOURNAL OF MINERAL PROCESSING,94(1-2),#REF!. |
| MLA | Xia, JL,et al."Investigation of the sulfur speciation during chalcopyrite leaching by moderate thermophile Sulfobacillus thermosulfidooxidans".INTERNATIONAL JOURNAL OF MINERAL PROCESSING 94.1-2(2010):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
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