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Effects of Acidithiobacillus ferrooxidans and Fe(III) on pyrite-pyrolusite bioleaching process
Feng, Yali1; Kang, Jinxing1; Li, Haoran2; Zhang, Xu1; Deng, Xiangyi1; Sun, Min1; Chen, Xipei1
2017
发表期刊METALLURGICAL RESEARCH & TECHNOLOGY
ISSN2271-3646
卷号114期号:4
摘要The beneficial effects of Acidithiobacillus ferrooxidans and/or Fe(III) on manganese bioleaching from a low-grade manganese ore were confirmed. The results showed that the rate of manganese bioleaching increases with the amount of A. ferrooxidans and/or Fe(III). With the presence of Fe(III) and A. ferrooxidans the average initial leaching rate increased from 0.06 to 0.15 g/(L h). Cyclic voltammetry analysis showed that the presence of A. ferrooxidans and/or Fe(III) generate obvious redox potential polarization in the solution. Fe(III) reduced the potential difference between anode and cathode of pyrite and promoted the positive cathodic polarization of pyrolusite at 0.2 V. In the process of pyrite oxidation A. ferrooxidans accelerated the generation and transfer of electron.
关键词A. ferrooxidA.s Bioleaching Low-grade Pyrolusite Pyrite Cyclic Voltammetry
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1051/metal/2017022
收录类别SCI
语种英语
关键词[WOS]SULFURIC-ACID ; MANGANESE ORE ; EXTRACTION ; OXIDATION ; MECHANISM
WOS研究方向Metallurgy & Metallurgical Engineering
WOS类目Metallurgy & Metallurgical Engineering
项目资助者Major Science and Technology Program for Water Pollution Control and Treatment(2015ZX07205-003) ; China Ocean Mineral Resource RD Association(DY125-15-T-08) ; National Key Technology R&D Program of China(2012BAB07B05) ; National High Technology Research and Development Program (863 program) of China(2012AA062401)
WOS记录号WOS:000408697600002
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文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23220
专题生化工程国家重点实验室
作者单位1.Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
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Feng, Yali,Kang, Jinxing,Li, Haoran,et al. Effects of Acidithiobacillus ferrooxidans and Fe(III) on pyrite-pyrolusite bioleaching process[J]. METALLURGICAL RESEARCH & TECHNOLOGY,2017,114(4).
APA Feng, Yali.,Kang, Jinxing.,Li, Haoran.,Zhang, Xu.,Deng, Xiangyi.,...&Chen, Xipei.(2017).Effects of Acidithiobacillus ferrooxidans and Fe(III) on pyrite-pyrolusite bioleaching process.METALLURGICAL RESEARCH & TECHNOLOGY,114(4).
MLA Feng, Yali,et al."Effects of Acidithiobacillus ferrooxidans and Fe(III) on pyrite-pyrolusite bioleaching process".METALLURGICAL RESEARCH & TECHNOLOGY 114.4(2017).
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