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Silver dissolution in a novel leaching system: Reaction kinetics study

文献类型：期刊论文

作者Xiao, Li1,2; Han, Pei-wei1; Wang, Yong-liang1; Fu, Guo-yan1,2; Sun, Zhi1; Ye, Shu-feng1
刊名INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
出版日期2019-02-01
卷号26期号:2页码:168-177
关键词silver recovery thiosulfate ferricyanide dissolution kinetics non-cyanide
ISSN号1674-4799
DOI10.1007/s12613-019-1721-0
英文摘要Effective silver recovery is usually restricted by either environmental pollution or high recovery costs. To tackle the issues, this study introduces a novel method for the effective recovery of silver by utilizing the alkaline sodium thiosulfate-potassium ferricyanide leaching system. The reaction kinetics of silver dissolution in this system was investigated via the rotating disk electrode technology. The influences of important parameters, including the rotation speed, sodium thiosulfate concentration, potassium ferricyanide concentration, and temperature, on the silver dissolution rate were systematically investigated. The activation energy was measured to be 17.96 kJmol(-1) when the silver dissolution was controlled by a diffusion process. When the silver dissolution was in the region of mixed control, the reaction orders of ferricyanide and thiosulfate were found to be 0.57 and 0.19, respectively, and the reaction orders of ferricyanide and thiosulfate were 0.55 and 0.22, respectively, when the silver dissolution was controlled by surface reaction. This study has great potential for the development of an environmentally friendly silver recovery process from end--of-life products.
WOS关键词THIOSULFATE ; GOLD ; RECOVERY ; CYANIDE ; TAILINGS ; THIOUREA ; METALS ; WASTES ; ORE
资助项目Key Research Program 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研究方向Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
语种英语
WOS记录号WOS:000458436000004
出版者SPRINGER
资助机构Key Research Program of the Chinese Academy of Sciences ; Material Chemistry and Engineering Group, Institute of Process Engineering, Chinese Academy of Sciences
源URL[http://ir.ipe.ac.cn/handle/122111/28090]  
专题中国科学院过程工程研究所
通讯作者Ye, Shu-feng
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Xiao, Li,Han, Pei-wei,Wang, Yong-liang,et al. Silver dissolution in a novel leaching system: Reaction kinetics study[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2019,26(2):168-177.
APA Xiao, Li,Han, Pei-wei,Wang, Yong-liang,Fu, Guo-yan,Sun, Zhi,&Ye, Shu-feng.(2019).Silver dissolution in a novel leaching system: Reaction kinetics study.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,26(2),168-177.
MLA Xiao, Li,et al."Silver dissolution in a novel leaching system: Reaction kinetics study".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 26.2(2019):168-177.

入库方式： OAI收割

来源：过程工程研究所

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