Li Xiao1; Peiwei Han1; Yongliang Wang1; Guoyan Fu1; Zhi Sun1; Shufeng Ye1
Source Publication矿物冶金与材料学报英文版
AbstractEffective 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 kJ·mol^-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.
Funding Project[Key Research Program of the Chinese Academy of Sciences] ; [Material Chemistry and Engineering Group, Institute of Process Engineering, Chinese Academy of Sciences]
Document Type期刊论文
Affiliation1.State Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li Xiao,Peiwei Han,Yongliang Wang,et al. silverdissolutioninanovelleachingsystemreactionkineticsstudy[J]. 矿物冶金与材料学报英文版,2019,026(002):168.
APA Li Xiao,Peiwei Han,Yongliang Wang,Guoyan Fu,Zhi Sun,&Shufeng Ye.(2019).silverdissolutioninanovelleachingsystemreactionkineticsstudy.矿物冶金与材料学报英文版,026(002),168.
MLA Li Xiao,et al."silverdissolutioninanovelleachingsystemreactionkineticsstudy".矿物冶金与材料学报英文版 026.002(2019):168.
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