CAS OpenIR
An environmentally friendly system for high efficient silver recovery from anode slime
Xiao, Li1,2; Qian, Peng1; Yu, Yang3; Han, Peiwei1; Wang, Yongliang1; Fu, Guoyan1,2; Sun, Zhi1; Ye, Shufeng1
2019-02-14
Source PublicationMETALLURGICAL RESEARCH & TECHNOLOGY
ISSN2271-3646
Volume116Issue:2Pages:8
AbstractAnode slime is an extremely valuable secondary resource for the recovery of silver and has attracted wide attentions. Effective metal recovery is usually constrained by either environmental hazards or high consumption of lixiviant for cyanide and non-cyanide leaching reagents. To tackle these issues in the process of silver recovery from anode slime, this research demonstrated a new leaching system with using an efficient oxidant which encapsulates cyanide into ferric complexes to ensure it not releasing into the environment while effective silver recovery was achieved. Comparing with the traditional tetra-amine copper oxidant, it was found that the dissolution rate of silver was significantly improved and leachate consumption was largely decreased. The effects of stirring speed, sodium thiosulfate concentration, oxidant concentration, solution pH and time on silver dissolution were investigated. When the novel system of iron-encapsulated cyanide was applied to extract silver from anode slime, the final conversion rates of silver was 97% after 60 minutes. This system has great potential in silver recovery from anode slime.
Keywordsilver leaching sodium thiosulfate potassium ferricyanide anode slime non-cyanide
DOI10.1051/metal/2018070
Language英语
WOS KeywordPRINTED-CIRCUIT BOARDS ; THIOSULFATE ; GOLD ; COPPER ; KINETICS ; CYANIDE ; IONS
Funding ProjectNatural Science Foundation of China[51202249] ; 863 Project[2011AA 06A104] ; Projects in the National Science & Technology Pillar[2012BAB08B04] ; Material Chemistry and Engineering Group, Institute of Process Engineering, Chinese Academy of Sciences
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
Funding OrganizationNatural Science Foundation of China ; 863 Project ; Projects in the National Science & Technology Pillar ; Material Chemistry and Engineering Group, Institute of Process Engineering, Chinese Academy of Sciences
WOS IDWOS:000458646500001
PublisherEDP SCIENCES S A
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/27916
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, Beijing 100049, Peoples R China
3.Lakehead Univ, Thunder Bay, ON P7B 5E1, Canada
Recommended Citation
GB/T 7714
Xiao, Li,Qian, Peng,Yu, Yang,et al. An environmentally friendly system for high efficient silver recovery from anode slime[J]. METALLURGICAL RESEARCH & TECHNOLOGY,2019,116(2):8.
APA Xiao, Li.,Qian, Peng.,Yu, Yang.,Han, Peiwei.,Wang, Yongliang.,...&Ye, Shufeng.(2019).An environmentally friendly system for high efficient silver recovery from anode slime.METALLURGICAL RESEARCH & TECHNOLOGY,116(2),8.
MLA Xiao, Li,et al."An environmentally friendly system for high efficient silver recovery from anode slime".METALLURGICAL RESEARCH & TECHNOLOGY 116.2(2019):8.
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