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A Novel, Solvent-Free Mechanochemistry Approach for Gold Extraction from Anode Slime
Xiao, Li1,2; Wang, Yongliang1; Sun, Zhi1; Qian, Peng1; Han, Peiwei1; Yu, Bo1,2; Ye, Shufeng1
2019-07-01
Source PublicationACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
Volume7Issue:13Pages:11415-11425
AbstractGold extraction from anode slime often results in severe pollution as well as high consumption of reagents. Herein, a novel strategy, that in situ generates oxidative chlorine by a mechanochemistry approach, was developed for gold extraction from anode slime for the first time. By conducting dry ball milling of the mixed anode slime, KMnO4, and NH4Cl, elemental gold in anode slime was efficiently converted into water-soluble AuCl3 and then separated from solids by simple water leaching. A high gold yield of 97.71% was achieved under optimal conditions of 0.15 g of NH4Cl, water content of 9.09%, mass ratio of 20, rotation speed of 700 rpm, and reaction time of 60 min. Furthermore, this approach achieved a gold yield of 78.82%, while yields of other coexisting metals were nearly negligible. Compared with the hydrometallurgical process, this approach exhibited great advantages for its nearly solvent-free process, excellent selectivity for gold, and environmental friendliness.
Keywordmechanochemistry anode slime gold conversion solvent-free selective recovery
DOI10.1021/acssuschemeng.9b01207
Language英语
WOS KeywordRECOVERING PRECIOUS METALS ; WASTE ; THIOSULFATE ; GREEN ; COMPLEXES ; CYANIDE ; SILVER ; WATER
Funding ProjectKey Deployment Project of the Chinese Academy of Sciences[ZDRW-ZS-2018-1-2] ; Material Chemistry and Engineering Group, Institute of Process Engineering, Chinese Academy of Sciences
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Engineering
WOS SubjectChemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical
Funding OrganizationKey Deployment Project of the Chinese Academy of Sciences ; Material Chemistry and Engineering Group, Institute of Process Engineering, Chinese Academy of Sciences
WOS IDWOS:000474474800042
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/30151
Collection中国科学院过程工程研究所
Corresponding AuthorYe, Shufeng
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Huairou 101408, Peoples R China
Recommended Citation
GB/T 7714
Xiao, Li,Wang, Yongliang,Sun, Zhi,et al. A Novel, Solvent-Free Mechanochemistry Approach for Gold Extraction from Anode Slime[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2019,7(13):11415-11425.
APA Xiao, Li.,Wang, Yongliang.,Sun, Zhi.,Qian, Peng.,Han, Peiwei.,...&Ye, Shufeng.(2019).A Novel, Solvent-Free Mechanochemistry Approach for Gold Extraction from Anode Slime.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(13),11415-11425.
MLA Xiao, Li,et al."A Novel, Solvent-Free Mechanochemistry Approach for Gold Extraction from Anode Slime".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.13(2019):11415-11425.
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