Surface analysis of sulfur speciation on pyrite bioleached by extreme thermophile Acidianus manzaensis using Raman and XANES spectroscopy

被引：61

作者：

Xia, Jin-lan ^{[1
]}

Yang, Yi ^{[1
]}

He, Huan ^{[3
]}

Zhao, Xiao-juan ^{[1
]}

Liang, Chang-li ^{[1
]}

Zheng, Lei ^{[2
]}

Ma, Chen-yan ^{[2
]}

Zhao, Yi-dong ^{[2
]}

Nie, Zhen-yuan ^{[1
]}

Qiu, Guan-zhou ^{[1
]}

机构：

[1] Cent S Univ, Sch Minerals Proc & Bioengn, Key Lab Biomet, Changsha 410083, Peoples R China

[2] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China

[3] China Univ Min & Technol, Sch Chem Engn & Technol, Key Lab Coal Proc & Efficient Utiliaza Minist Edu, Xuzhou 221116, Peoples R China

来源：

HYDROMETALLURGY | 2010年 / 100卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

Bioleaching; Pyrite; Acidianus manzaensis; Sulfur speciation; XANES; Raman spectroscopy; OXIDATION; CHALCOPYRITE; DISSOLUTION; ARCHAEA; IRON; TEMPERATURE; MECHANISM; JAROSITE; SPECTRA; SULFATE;

D O I：

10.1016/j.hydromet.2009.11.001

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Sulfur speciation on the surface of pyrite leached by extreme thermophile Acidianus manzaensis YN-25 was investigated by using scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectroscopy and sulfur K-edge X-ray absorption near edge structure spectroscopy (XANES). SEM micrographs showed leaching products with numerous holes were formed into the surface of leached pyrite. XRD spectra indicated that the leach residues were mainly composed of pyrite and jarosite. The sulfur K-edge XANES indicated that elemental sulfur, thiosulfate and/or thiosulfate-like species and jarosite were formed on the mineral surface. Raman spectroscopy further verified the presence of jarosite. elemental sulfur and thiosulfate. Jarosite formed in pyrite leaching appeared much later than in chalcopyrite leaching by the same strain. Jarosite on the mineral surface may account for the passivation of pyrite oxidation, with the passivation effect of elemental sulfur which is less important. In addition, the thiosulfate detected in this study provided novel evidence for surface-bound thiosulfate involved in the stepwise oxidation of pyrite by the extreme thermophile A. manzaensis. (C) 2009 Elsevier B.V All rights reserved

引用

页码：129 / 135

页数：7

共 39 条

[31] CONFIRMATION OF A SULFUR-RICH LAYER ON PYRITE AFTER OXIDATIVE DISSOLUTION BY FE(III) IONS AROUND PH-2 [J].

SASAKI, K ;

TSUNEKAWA, M ;

OHTSUKA, T ;

KONNO, H .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1995, 59 (15) :3155-3158

[32] Raman characterization of secondary minerals formed during chalcopyrite leaching with Acidithiobacillus ferrooxidans [J].

Sasaki, K. ;

Nakamuta, Y. ;

Hirajima, T. ;

Tuovinen, O. H. .

HYDROMETALLURGY, 2009, 95 (1-2) :153-158

[33] Intermediary sulfur compounds in pyrite oxidation: implications for bioleaching and biodepyritization of coal [J].

Schippers, A ;

Rohwerder, T ;

Sand, W .

APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, 1999, 52 (01) :104-110

[34] Elemental sulfur at the pyrite surfaces: speciation and quantification [J].

Toniazzo, V ;

Mustin, C ;

Portal, JM ;

Humbert, B ;

Benoit, R ;

Erre, R .

APPLIED SURFACE SCIENCE, 1999, 143 (1-4) :229-237

[35] Bioleaching of chalcopyrite with thermophiles:: Temperature-pH-ORP dependence [J].

Vilcaez, J. ;

Suto, K. ;

Inoue, C. .

INTERNATIONAL JOURNAL OF MINERAL PROCESSING, 2008, 88 (1-2) :37-44

[36] Electronic and optical properties of Fe, Zn and Pb sulfides [J].

von Oertzen, GU ;

Jones, RT ;

Gerson, AR .

PHYSICS AND CHEMISTRY OF MINERALS, 2005, 32 (04) :255-268

[37] Synthesis and properties of ammoniojarosites prepared with iron-oxidizing acidophilic microorganisms at 22-65°C [J].

Wang, Hongmei ;

Bigham, Jerry M. ;

Jones, Franklin S. ;

Tuovinen, Olli H. .

GEOCHIMICA ET COSMOCHIMICA ACTA, 2007, 71 (01) :155-164

[38] Acidianus manzaensis sp nov., a novel thermoacidophilic Archaeon growing autotrophically by the oxidation of H2 with the reduction of Fe3+ [J].

Yoshida, Naoki ;

Nakasato, Masanori ;

Ohmura, Naoya ;

Ando, Akikazu ;

Saiki, Hiroshi ;

Ishii, Masaharu ;

Igarashi, Yasuo .

CURRENT MICROBIOLOGY, 2006, 53 (05) :406-411

[39] Bioleaching of pyrite by A. ferrooxidans and L. ferriphilum [J].

Zhang Lin ;

Qiu Guan-zhou ;

Hu Yue-hua ;

Sun Xiao-jun ;

Li Jian-hua ;

Gu Guo-hua .

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2008, 18 (06) :1415-1420

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