Effect of activated carbon on chalcopyrite bioleaching with extreme thermophile Acidianus manzaertsis

	Effect of activated carbon on chalcopyrite bioleaching with extreme thermophile Acidianus manzaertsis
	Liang, CL; Xia, JL; Zhao, XJ; Yang, Y; Gong, SQ; Nie, ZY; Ma, CY; Zheng, L; Zhao, YD; Qiu, GZ
刊名	HYDROMETALLURGY
	2010
卷号	105 期号:1-2 页码:179-185
关键词	Activated carbon Chalcopyrite Sulfur speciation XANES Acidianus manzaensis YN25
通讯作者	[Liang, Chang-Li ; Xia, Jin-Lan ; Zhao, Xiao-Juan ; Yang, Yi ; Gong, San-Qiang ; Nie, Zhen-Yuan ; Qiu, Guan-Zhou] Cent S Univ, Key Lab Biomet, Minist Educ China, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China ; [Ma, Chen-Yan ; Zheng, Lei ; Zhao, Yi-Dong] Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China
英文摘要	The effect of activated carbon on chalcopyrite bioleaching by extreme thermophile Acidianus manzaensis YN25 at 65 degrees C was evaluated, together with the investigation of the sulfur speciation transformation on the mineral by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and sulfur K-edge X-ray absorption near edge structure (XANES) spectroscopy. Bioleaching experiments show activated carbon significantly accelerated the dissolution of copper from chalcopyrite concentrate. The optimum concentration of activated carbon enhancing copper dissolution is 2 g/L. under which the copper yields increased from 64% to 95%. The catalysis could mainly be attributed to the galvanic interaction between activated carbon and chalcopyrite. Jarosite, elemental sulfur and chalcocite were detected in the solid phase, and the formation of potassium jarosite was prior to ammonio-jarosite. Activated carbon did not change the species of sulfur-containing compounds, but accelerated the formation of them. (C) 2010 Elsevier B.V. All rights reserved.
学科主题	Metallurgy & Metallurgical Engineering
类目[WOS]	Metallurgy & Metallurgical Engineering
研究领域[WOS]	Metallurgy & Metallurgical Engineering
原文出处	SCI
语种	英语
WOS记录号	WOS:000285131900026
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/236847]
专题	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
推荐引用方式 GB/T 7714	Liang, CL,Xia, JL,Zhao, XJ,et al. Effect of activated carbon on chalcopyrite bioleaching with extreme thermophile Acidianus manzaertsis[J]. HYDROMETALLURGY,2010,105(1-2):179-185.
APA	Liang, CL.,Xia, JL.,Zhao, XJ.,Yang, Y.,Gong, SQ.,...&赵屹东.(2010).Effect of activated carbon on chalcopyrite bioleaching with extreme thermophile Acidianus manzaertsis.HYDROMETALLURGY,105(1-2),179-185.
MLA	Liang, CL,et al."Effect of activated carbon on chalcopyrite bioleaching with extreme thermophile Acidianus manzaertsis".HYDROMETALLURGY 105.1-2(2010):179-185.