Formation and evolution of secondary minerals during bioleaching of chalcopyrite by thermoacidophilic Archaea Acidianus manzaensis
Liu, HC; Xia, JL; Nie, ZY; Wen, W; Yang, Y; Ma, CY; Zheng, L; Zhao, YD; Ma CY(马陈燕); Zheng L(郑雷); Zhao YD(赵屹东)
刊名TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2016
卷号26期号:9页码:2485-2494
关键词bioleaching chalcopyrite Acidianus manzaensis secondary minerals formation evolution
DOI10.1016/S1003-6326(16)64369-8
其他题名嗜酸热古菌Acidianus manzaensis浸出黄铜矿过程中次生矿物的形成及演变
文章类型期刊论文
英文摘要The formation and evolution of secondary minerals during bioleaching of chalcopyrite by thermoacidophilic Archaea Acidianus manzaensis were analyzed by combining synchrotron radiation X-ray diffraction (SR-XRD) and S, Fe and Cu K-alpha X-ray absorption near edge structure (XANES) spectroscopy. Leaching experiment showed that 82.4% of Cu2+ was dissolved by A. manzaensis after 10 d. The surface of chalcopyrite was corroded apparently and covered with leaching products. During bioleaching, the formation and evolution of secondary minerals were as follows: 1) little elemental sulfur, jarosite, bornite and chalcocite were found at days 2 and 4; and 2) bornite and chalcocite disappeared, covellite formed, and jarosite gradually became the main component at days 6 and 10. These results indicated that metal-deficiency sulfides chalcocite and bornite were first formed with a low redox potential value (360-461 mV), and then gradually transformed to covellite with a high redox potential value (461-531 mV).
类目[WOS]Metallurgy & Metallurgical Engineering
关键词[WOS]SULFURIC-ACID-SOLUTION ; K-EDGE XANES ; THIOBACILLUS-FERROOXIDANS ; ACIDITHIOBACILLUS-FERROOXIDANS ; HINDERED DISSOLUTION ; SURFACE-CHEMISTRY ; SPECIATION ; PROGRESS ; LAYERS ; THERMOPHILES
语种英语
WOS记录号WOS:000386345500026
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260361
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
作者单位中国科学院高能物理研究所
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Liu, HC,Xia, JL,Nie, ZY,et al. Formation and evolution of secondary minerals during bioleaching of chalcopyrite by thermoacidophilic Archaea Acidianus manzaensis[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2016,26(9):2485-2494.
APA Liu, HC.,Xia, JL.,Nie, ZY.,Wen, W.,Yang, Y.,...&赵屹东.(2016).Formation and evolution of secondary minerals during bioleaching of chalcopyrite by thermoacidophilic Archaea Acidianus manzaensis.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,26(9),2485-2494.
MLA Liu, HC,et al."Formation and evolution of secondary minerals during bioleaching of chalcopyrite by thermoacidophilic Archaea Acidianus manzaensis".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 26.9(2016):2485-2494.
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