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Relatedness between catalytic effect of activated carbon and passivation phenomenon during chalcopyrite bioleaching by mixed thermophilic Archaea culture at 65 degrees C
文献类型：期刊论文
| 作者 | Liu, HC ; Ma, YL; Zheng, L; Hong, CH; Wen, W; Zhao YD(赵屹东); Ma CY(马陈燕); Zheng L(郑雷); Hong CH(洪才浩); Xia, JL
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| 刊名 | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA中国有色金属学报
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| 出版日期 | 2017 |
| 卷号 | 27期号:6页码:1374-1384 |
| 关键词 | chalcopyrite bioleaching activated carbon passivation phenomenon mixed thermophilic Archaea culture |
| ISSN号 | 1003-6326 |
| DOI | 10.1016/S1003-6326(17)60158-4 |
| 其他题名 | 混合嗜热古菌在65°C生物浸出黄铜矿过程中活性炭的催化作用和钝化现象的相关性 |
| 文献子类 | Article |
| 英文摘要 | The relatedness between catalytic effect of activated carbon and passivation phenomenon during chalcopyrite bioleaching by mixed thermophilic Archaea culture (Acidianus brierleyi, Metallosphaera sedula, Acidianus manzaensis and Sulfolobus metallicus) at 65 degrees C was studied. Leaching experiments showed that the addition of activated carbon could significantly promote the dissolution of chalcopyrite for both bioleaching and chemical leaching. The results of synchrotron-based X-ray diffraction, iron L-edge and sulfur K-edge X-ray absorption near edge structure spectroscopy indicated that activated carbon could change the transition path of electrons through galvanic interactions to form more readily dissolved secondary mineral chalcocite at a low redox potential (<400 mV) and then enhanced the copper dissolution. Jarosite accumulated immediately in the initial stage of bioleaching with activated carbon but copper dissolution was not hindered. However, much jarosite precipitated on the surface of chalcopyrite in the late stage of bioleaching, which might account for the decrease of copper dissolution rate. More elemental sulfur (S-0) was also detected with additional activated carbon but the mixed thermophilic Archaea culture had a great sulfur oxidation activity, thus S-0 was eliminated and seemed to have no significant influence on the dissolution of chalcopyrite. |
| 电子版国际标准刊号 | 2210-3384 |
| WOS关键词 | K-EDGE XANES ; ACIDITHIOBACILLUS-FERROOXIDANS ; ACIDIANUS-MANZAENSIS ; SULFUR SPECIATION ; CONCENTRATE ; SPECTROSCOPY ; COPPER |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| CSCD记录号 | CSCD:6030727 |
| WOS记录号 | WOS:000406388300017 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285243]  |
| 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 |
| 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 | Liu, HC,Ma, YL,Zheng, L,et al. Relatedness between catalytic effect of activated carbon and passivation phenomenon during chalcopyrite bioleaching by mixed thermophilic Archaea culture at 65 degrees C[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA中国有色金属学报,2017,27(6):1374-1384. |
| APA | Liu, HC.,Ma, YL.,Zheng, L.,Hong, CH.,Wen, W.,...&Ma, CY.(2017).Relatedness between catalytic effect of activated carbon and passivation phenomenon during chalcopyrite bioleaching by mixed thermophilic Archaea culture at 65 degrees C.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA中国有色金属学报,27(6),1374-1384. |
| MLA | Liu, HC,et al."Relatedness between catalytic effect of activated carbon and passivation phenomenon during chalcopyrite bioleaching by mixed thermophilic Archaea culture at 65 degrees C".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA中国有色金属学报 27.6(2017):1374-1384. |
入库方式： OAI收割
来源：高能物理研究所
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