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; Xia, JL (reprint author), Cent S Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Hunan, Peoples R China.; Xia, JL (reprint author), Cent S Univ, Minist Educ, Key Lab Biometallurgy, Changsha 410083, Hunan, Peoples R China.
2016
发表期刊TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN1003-6326
卷号26期号:9页码:2485-2494
文章类型期刊论文
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).
关键词Bioleaching Chalcopyrite Acidianus Manzaensis Secondary Minerals Formation Evolution
DOI10.1016/S1003-6326(16)64369-8
收录类别SCI
语种英语
WOS记录号WOS:000386345500026
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/26514
专题中科院上海应用物理研究所2011-2018年
通讯作者Xia, JL (reprint author), Cent S Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Hunan, Peoples R China.; Xia, JL (reprint author), Cent S Univ, Minist Educ, Key Lab Biometallurgy, Changsha 410083, Hunan, Peoples R China.
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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.,...&Xia, JL .(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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