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
发表期刊CHEMICAL ENGINEERING RESEARCH & DESIGN
ISSN0263-8762
卷号132页码:19-27
摘要Extraction 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.
关键词Rare Earths Low Concentration Enrichment Solvent Extraction Organic Hollow Sphere
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.cherd.2018.01.001
收录类别SCI
语种英语
关键词[WOS]PULSED DISC ; COLUMN
WOS研究方向Engineering
WOS类目Engineering, Chemical
项目资助者National Natural Science Foundation of China(51574213 ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Programs)(2012CBA01203 ; 51074150) ; 2013CB632602)
WOS记录号WOS:000430522300003
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24430
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.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
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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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