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Catalytic effect of Ag+ and Cu2+ on leaching realgar (As2S2)
Guo, Pei1,2; Zhang, Guangji1,2; Cao, Junya3; Li, Yuanyuan3; Fang, Zhaoheng1,2; Yang, Chao1,2; Zhang, GJ
2011-02-01
Source PublicationHYDROMETALLURGY
ISSN0304-386X
Volume106Issue:1-2Pages:99-103
AbstractThe catalytic effect of Ag+ and Cu2+ on the dissolution of realgar was studied. In the absence of these catalysis ions, little realgar can be leached by Fe3+ either with or without bacteria. Silver ion can enhance the chemical leaching and bioleaching rate remarkably, while the catalytic effect of copper(II) ion was not so obvious. The catalytic mechanism of Ag+ and Cu2+ was similar: the surface arsenic was replaced by the formation of Ag2S or CuS, which was then dissolved by Fe3+. With Ag+ added, the influences of concentration of Fe3+ and temperature on chemical leaching were also investigated. (C) 2010 Elsevier B.V. All rights reserved.
KeywordRealgar Bioleaching Ferric Leaching Silver Catalysis Copper Catalysis
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.hydromet.2010.12.006
Indexed BySCI
Language英语
WOS KeywordMIXED CULTURES ; CHALCOPYRITE ; SULFIDE ; PART ; OXIDATION ; PROGRESS ; IONS ; GOLD ; ACID
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000287952600016
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5264
Collection生化工程国家重点实验室
Corresponding AuthorZhang, GJ
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.China Univ Min & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Guo, Pei,Zhang, Guangji,Cao, Junya,et al. Catalytic effect of Ag+ and Cu2+ on leaching realgar (As2S2)[J]. HYDROMETALLURGY,2011,106(1-2):99-103.
APA Guo, Pei.,Zhang, Guangji.,Cao, Junya.,Li, Yuanyuan.,Fang, Zhaoheng.,...&Zhang, GJ.(2011).Catalytic effect of Ag+ and Cu2+ on leaching realgar (As2S2).HYDROMETALLURGY,106(1-2),99-103.
MLA Guo, Pei,et al."Catalytic effect of Ag+ and Cu2+ on leaching realgar (As2S2)".HYDROMETALLURGY 106.1-2(2011):99-103.
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