Sulfur speciation transformation during bioleaching of pyrite-containing sphalerite concentrate by thermophile Sulfolobus metallicus at 65 A degrees C
Xia, JL; Zhao, XJ; Liang, CL; Yang, Y; Nie, ZY; Tang, L; Ma, CY; Zheng, L; Zhao, YD; Qiu, GZ; Ma CY(马陈燕); Zheng L(郑雷); Zhao YD(赵屹东)
刊名JOURNAL OF CENTRAL SOUTH UNIVERSITY
2012
卷号19期号:7页码:1961-1966
关键词sphalerite bioleaching Sulfolobus metallicus sulfur K-edge X-ray absorption near edge spectroscopy (XANES) sulfur speciation transformation
学科分类Metallurgy & Metallurgical Engineering
DOI10.1007/s11771-012-1232-x
英文摘要Sulfur speciation transformation during bioleaching of pyrite-containing sphalerite concentrate by thermophile Sulfolobus metallicus (S. metallicus) at 65 A degrees C was investigated by X-ray diffraction (XRD), diffuse reflectance Fourier transform infrared spectroscopy (FT-IR) and sulfur K-edge X-ray absorption near edge structure spectroscopy (XANES). The results show that the presence of S. metallicus effectively enhances the dissolution of the mineral. The yield of zinc increases from 0.5 g/L in sterile control to 2.7 g/L in bioleaching. The pyrite in the concentrate facilitates zinc dissolution in the early stage, but has hindrance role in the late stage for the formation of jarosite. Sulfur speciation analyses show that jarosite and elemental sulfur are main products in bioleaching process, and the accumulation of jarosite is mainly responsible for the decline of leaching efficiency.
收录类别SCI
WOS记录号WOS:000305957100027
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224179
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
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Xia, JL,Zhao, XJ,Liang, CL,et al. Sulfur speciation transformation during bioleaching of pyrite-containing sphalerite concentrate by thermophile Sulfolobus metallicus at 65 A degrees C[J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY,2012,19(7):1961-1966.
APA Xia, JL.,Zhao, XJ.,Liang, CL.,Yang, Y.,Nie, ZY.,...&赵屹东.(2012).Sulfur speciation transformation during bioleaching of pyrite-containing sphalerite concentrate by thermophile Sulfolobus metallicus at 65 A degrees C.JOURNAL OF CENTRAL SOUTH UNIVERSITY,19(7),1961-1966.
MLA Xia, JL,et al."Sulfur speciation transformation during bioleaching of pyrite-containing sphalerite concentrate by thermophile Sulfolobus metallicus at 65 A degrees C".JOURNAL OF CENTRAL SOUTH UNIVERSITY 19.7(2012):1961-1966.
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