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Column leaching of low-grade sulfide ore from Zijinshan copper mine
Zou, Gang1,2; Papirio, Stefano2; Lai, Xiaokang1; Wu, Zengling1; Zou, Laichang1; Puhakka, Jaakko A.2; Ruan, Renman1,3
2015-06-10
Source PublicationINTERNATIONAL JOURNAL OF MINERAL PROCESSING
ISSN0301-7516
Volume139Issue:JUNPages:11-16
AbstractCopper and iron dissolution of Zijinshan low-grade copper sulfide ores was investigated in ore-packed columns. At 60 degrees C and pH 1.0, 37.1 g Fe(III) L-1 permitted effective copper dissolution and inhibited the activity of iron-oxidizing microorganisms. At 30 degrees C, microorganisms stimulated Fe(II) and pyrite oxidation, resulting in 85 and 54% of copper and pyrite extraction yields, respectively. Bacteria belonging to the genera Acidithiobacillus and Leptospirillum were dominant as observed by real-time PCR assay. Aeration and inoculation of columns were not necessary. Solutions had a higher pH of 1.7 in the columns operated without recirculation. Under these conditions, copper extraction was not affected and Fe(III) precipitated as jarosite, indicating a novel method for iron control in Zijinshan copper mine. (c) 2015 Elsevier B.V. All rights reserved.
KeywordColumn Bioleaching Ferric Leaching Chalcocite Jarosite Temperature
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.minpro.2015.04.005
Indexed BySCI
Language英语
WOS KeywordIRON-OXIDIZING BACTERIA ; REAL-TIME PCR ; LEPTOSPIRILLUM-FERRIPHILUM ; SULFUR OXIDATION ; BATCH CULTURE ; SULFATE ; HEAP ; CHALCOPYRITE ; TEMPERATURE ; DISSOLUTION
WOS Research AreaEngineering ; Mineralogy ; Mining & Mineral Processing
WOS SubjectEngineering, Chemical ; Mineralogy ; Mining & Mineral Processing
WOS IDWOS:000356195800002
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19281
Collection研究所(批量导入)
Affiliation1.Zijin Min Grp Co Ltd, Shanghang 364200, Peoples R China
2.Tampere Univ Technol, Dept Chem & Bioengn, FI-33101 Tampere, Finland
3.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zou, Gang,Papirio, Stefano,Lai, Xiaokang,et al. Column leaching of low-grade sulfide ore from Zijinshan copper mine[J]. INTERNATIONAL JOURNAL OF MINERAL PROCESSING,2015,139(JUN):11-16.
APA Zou, Gang.,Papirio, Stefano.,Lai, Xiaokang.,Wu, Zengling.,Zou, Laichang.,...&Ruan, Renman.(2015).Column leaching of low-grade sulfide ore from Zijinshan copper mine.INTERNATIONAL JOURNAL OF MINERAL PROCESSING,139(JUN),11-16.
MLA Zou, Gang,et al."Column leaching of low-grade sulfide ore from Zijinshan copper mine".INTERNATIONAL JOURNAL OF MINERAL PROCESSING 139.JUN(2015):11-16.
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