IHEP OpenIR  > 多学科研究中心
Synchrotron Radiation Based Study of the Catalytic Mechanism of Ag+ to Chalcopyrite Bioleaching by Mesophilic and Thermophilic Cultures
Nie, Zhenyuan, Zhang, Weiwei, Liu, Hongchang, Xia, Jinlan, Zhu, Wei, Zhang, Duorui, Zheng, Lei, Ma, Chenyan, Zhao, Yidong; Wen, Wen; Zheng L(郑雷); Ma CY(马陈燕); Zhao YD(赵屹东)
2018
Source PublicationMINERALS
ISSN2075-163X
Volume8Issue:9Pages:382
SubtypeArticle
AbstractThe catalytic mechanism of Ag+ for chalcopyrite bioleaching by mesophilic culture (at 30 degrees C) and thermophilic culture (at 48 degrees C) was investigated using synchrotron radiation-based X-ray diffraction (SR-XRD) and S K-edge and Fe L-edge X-ray absorption near edge structure (XANES) spectroscopy. Bioleaching experiments showed that copper extraction from chalcopyrite bioleaching by both cultures was promoted significantly by Ag+, with more serious corrosion occurring on the minerals surface. SR-XRD and XANES analyses showed that the intermediates S-0, jarosite and secondary minerals (bornite, chalcocite and covellite) formed for all bioleaching experiments. For these secondary minerals, the formation of bornite and covellite was promoted significantly in the presence of Ag+ for both cultures, while Ag+ has almost no effect on the formation of chalcocite. These results provided insight into the catalytic mechanisms of Ag+ to chalcopyrite bioleaching by the mesophilic and thermophilic cultures, which are both probably due to the rapid formation of bornite by Ag+ and the conversion of bornite to covellite.
Keywordchalcopyrite bioleaching Ag+ mesophilic culture thermophilic culture SR-XRD XANES
DOI10.3390/min8090382
WOS KeywordELECTROCHEMICAL DISSOLUTION ; SILVER IONS ; SPECIATION ; SPECTROSCOPY ; EVOLUTION ; OXIDATION ; MINERALS ; EMPHASIS ; KINETICS ; BORNITE
Indexed BySCI ; ADS
Language英语
WOS Research AreaMineralogy ; Mining & Mineral Processing
WOS SubjectMineralogy ; Mining & Mineral Processing
WOS IDWOS:000447939100022
ADS Bibcode2018Mine....8..382N
ADS URLhttps://ui.adsabs.harvard.edu/abs/2018Mine....8..382N
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2018Mine....8..382N/citations
Citation statistics
Cited Times:0 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/286723
Collection多学科研究中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Nie, Zhenyuan, Zhang, Weiwei, Liu, Hongchang, Xia, Jinlan, Zhu, Wei, Zhang, Duorui, Zheng, Lei, Ma, Chenyan, Zhao, Yidong,Wen, Wen,Zheng L,et al. Synchrotron Radiation Based Study of the Catalytic Mechanism of Ag+ to Chalcopyrite Bioleaching by Mesophilic and Thermophilic Cultures[J]. MINERALS,2018,8(9):382.
APA Nie, Zhenyuan, Zhang, Weiwei, Liu, Hongchang, Xia, Jinlan, Zhu, Wei, Zhang, Duorui, Zheng, Lei, Ma, Chenyan, Zhao, Yidong,Wen, Wen,郑雷,马陈燕,&赵屹东.(2018).Synchrotron Radiation Based Study of the Catalytic Mechanism of Ag+ to Chalcopyrite Bioleaching by Mesophilic and Thermophilic Cultures.MINERALS,8(9),382.
MLA Nie, Zhenyuan, Zhang, Weiwei, Liu, Hongchang, Xia, Jinlan, Zhu, Wei, Zhang, Duorui, Zheng, Lei, Ma, Chenyan, Zhao, Yidong,et al."Synchrotron Radiation Based Study of the Catalytic Mechanism of Ag+ to Chalcopyrite Bioleaching by Mesophilic and Thermophilic Cultures".MINERALS 8.9(2018):382.
Files in This Item:
File Name/Size DocType Version Access License
20181244.pdf(1204KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Nie, Zhenyuan, Zhang, Weiwei, Liu, Hongchang, Xia, Jinlan, Zhu, Wei, Zhang, Duorui, Zheng, Lei, Ma, Chenyan, Zhao, Yidong]'s Articles
[Wen, Wen]'s Articles
[郑雷]'s Articles
Baidu academic
Similar articles in Baidu academic
[Nie, Zhenyuan, Zhang, Weiwei, Liu, Hongchang, Xia, Jinlan, Zhu, Wei, Zhang, Duorui, Zheng, Lei, Ma, Chenyan, Zhao, Yidong]'s Articles
[Wen, Wen]'s Articles
[郑雷]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Nie, Zhenyuan, Zhang, Weiwei, Liu, Hongchang, Xia, Jinlan, Zhu, Wei, Zhang, Duorui, Zheng, Lei, Ma, Chenyan, Zhao, Yidong]'s Articles
[Wen, Wen]'s Articles
[郑雷]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.