CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
Efficient extraction and enrichment of rare earth from diluent aqueous solution by organic hollow sphere
Xiao, Chuanxu1,2; Huang, Kun1; Cao, Wenjuan1,2; Dong, Tingting1,2; Li, Min1,2; Liu, Huizhou1
2018-04-01
Source PublicationCHEMICAL ENGINEERING RESEARCH & DESIGN
ISSN0263-8762
Volume132Pages:19-27
AbstractExtraction of rare earths from leach aqueous solution by conventional chemical precipitation brings severe amino-nitrogen pollution. In this work, a novel method was developed by organic hollow sphere to extract and enrich Er(III), a model middle-heavy rare earth ion, from diluent aqueous solution. The organic hollow sphere is a core-shell structure, in which the core is composed of gas phase and the shell is a thin layer of organic extractant. The effects of flow rates of gas phase and/or organic extractant on Er(III) extraction rate were investigated. The results demonstrated that the flow rate of gas phase played more important role than that of organic extractant in the extraction rate of Er(III). Accompanied by the achievement of a large volume ratio (1000:1) of aqueous solution to organic extractant, the enrichment ratio (100) of the rare-earth ions could reach a significant level, which is much higher than that by conventional methods. The lower flow rate of organic extractant is more beneficial to Er(III) enrichment. It demonstrates that the newly developed extraction technique in this work is promising, and as a result the development of organic hollow sphere extraction process for the recovery of REs is straightforwardly envisaged. (C) 2018 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
KeywordRare Earths Low Concentration Enrichment Solvent Extraction Organic Hollow Sphere
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.cherd.2018.01.001
Indexed BySCI
Language英语
WOS KeywordPULSED DISC ; COLUMN
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(51574213 ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Programs)(2012CBA01203 ; 51074150) ; 2013CB632602)
WOS IDWOS:000430522300003
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24430
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 10049, Peoples R China
Recommended Citation
GB/T 7714
Xiao, Chuanxu,Huang, Kun,Cao, Wenjuan,et al. Efficient extraction and enrichment of rare earth from diluent aqueous solution by organic hollow sphere[J]. CHEMICAL ENGINEERING RESEARCH & DESIGN,2018,132:19-27.
APA Xiao, Chuanxu,Huang, Kun,Cao, Wenjuan,Dong, Tingting,Li, Min,&Liu, Huizhou.(2018).Efficient extraction and enrichment of rare earth from diluent aqueous solution by organic hollow sphere.CHEMICAL ENGINEERING RESEARCH & DESIGN,132,19-27.
MLA Xiao, Chuanxu,et al."Efficient extraction and enrichment of rare earth from diluent aqueous solution by organic hollow sphere".CHEMICAL ENGINEERING RESEARCH & DESIGN 132(2018):19-27.
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