典型文献
A microextraction approach for rapid extraction and separation of Mn(Ⅱ)and Co(Ⅱ)using saponified D2EHPA system
文献摘要：
In this paper,we proposed a microextraction approach for the extraction and separation of Mn(Ⅱ)and Co(Ⅱ)from sulfate solution simulating leachate of spent lithium-ion battery cathode materials using saponified di-(2-ethylhexyl)phosphoric acid system.The effects of the following operational variables were investigated:equili-brium pH,tri-n-butyl phosphate concentration,saponifica-tion rate,two-phase ratio and residence time.The results showcased that the microextractor can reach the extraction equilibrium within 20 s,thereby greatly reducing neces-sary extraction time comparing to that of conventional processes.The volumetric mass transfer coefficient showed 8-21 times larger than that of batch device.With the help of microextractor,95％of Mn(Ⅱ)was extracted with a single theoretical stage at a chosen two-phase ratio of 3:1,and the separation factor βMn/Co was as large as 65.5.In the subsequent stripping step,more than 99％of manganese from loaded phase was easily stripped under optimal conditions.The microextraction approach greatly enhances the mass transfer while enabling a continuous and controllable extraction process within a simple structure design.When extracting spent electrode material with microextractors,the comprehensive recovery of mangenese can reach 96％.The microextraction approach has a good applicability in the spent lithium-ion battery cathode materials recycling at both bench and industrial scales.
文献关键词：
中图分类号：
作者姓名：
Yiwei Zhou;Chen Zhuo;Jinpei Huang;Haipeng Liu;Jianhong Xu
作者机构：
The State Key Laboratory of Chemical Engineering,Department of Chemical Engineering,Tsinghua University,Beijing 100084,China
文献出处：
引用格式：
[1]Yiwei Zhou;Chen Zhuo;Jinpei Huang;Haipeng Liu;Jianhong Xu-.A microextraction approach for rapid extraction and separation of Mn(Ⅱ)and Co(Ⅱ)using saponified D2EHPA system)[J].化学科学与工程前沿,2022(06):963-972
A类：
equili,brium,saponifica,microextractor,microextractors,mangenese
B类：
microextraction,approach,rapid,separation,Mn,Co,using,saponified,D2EHPA,system,In,this,paper,proposed,from,sulfate,solution,simulating,leachate,spent,lithium,battery,cathode,materials,ethylhexyl,phosphoric,acid,effects,following,operational,variables,were,investigated,butyl,phosphate,concentration,rate,two,phase,residence,results,showcased,that,can,reach,equilibrium,within,thereby,greatly,reducing,neces,sary,comparing,conventional,processes,volumetric,mass,transfer,coefficient,showed,times,larger,than,batch,device,With,help,was,extracted,single,theoretical,stage,chosen,subsequent,stripping,step,more,manganese,loaded,easily,stripped,under,optimal,conditions,enhances,while,enabling,continuous,controllable,simple,structure,design,When,extracting,electrode,comprehensive,recovery,good,applicability,recycling,both,bench,industrial,scales
AB值：
0.549584
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