Sulfur speciation transformation during bioleaching of pyrite-containing sphalerite concentrate by thermophile Sulfolobus metallicus at 65 A degrees C
文献类型：期刊论文
| 作者 | Xia, JL; Zhao, XJ; Liang, CL; Yang, Y; Nie, ZY; Tang, L; Ma, CY; Zheng, L; Zhao, YD; Qiu, GZ |
| 刊名 | JOURNAL OF CENTRAL SOUTH UNIVERSITY
 |
| 出版日期 | 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 |
| 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. |
| 学科主题 | Metallurgy & Metallurgical Engineering |
| 收录类别 | SCI |
| WOS记录号 | WOS:000305957100027 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/224179]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | 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. |
入库方式： OAI收割
来源：高能物理研究所
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