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	Comprehensive appraisal and application of novel extraction system for heavy rare earth separation on the basis of coordination equilibrium effect
	Chen, Li1,2; Chen, Ji1; Jing, Yu1; Li, Deqian1
刊名	Hydrometallurgy
	2016-10-01
卷号	165页码:351-357
关键词	Coordination equilibrium effect Thermodynamics study Apparent kinetics study Heavy rare earths Separation
ISSN号	0304-386X
DOI	10.1016/j.hydromet.2015.12.007
通讯作者	Chen, ji(jchen@ciac.ac.cn)
英文摘要	Several novel extraction systems were reported since 2-ethylhexyl phosphonic acid mono-(2-ethylhexyl) ester (p507) had been confronted with low selectivity and incomplete stripping for heavy rare earths (hres). this paper makes a comprehensive appraisal of p507, bis (2,4,4-trimethylpentyl) phosphinic acid (cyanex272), mixture of p507 and cyanex272, p507 adding isooctanol and bifunctional ionic liquid extractant (bif-ile) [trialkylmethyl-ammonium][di-(2-ethylhexyl)orthophosphinate] ([a336][p507]). thermodynamics study, apparent kinetics study and theoretical calculation for the cascade extraction are all included. we put forward coordination equilibrium effect for the first time to illustrate the inner and outer environment during the coordination. it could be useful to explain the extraction ability and selectivity of different extractants. all these would provide separation of hres with more feasible and informative understanding and guidance. (c) 2015 elsevier b.v. all rights reserved.
WOS关键词	ACID MONO-2-ETHYLHEXYL ESTER ; 2-ETHYLHEXYL PHOSPHONIC ACID ; SOLVENT-EXTRACTION ; IONIC LIQUIDS ; BIS(2,4,4-TRIMETHYLPENTYL)PHOSPHINIC ACID ; PHOSPHINIC ACID ; MIXTURES ; STRATEGY ; METALS
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000383522100021
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2375966
专题	中国科学院大学
通讯作者	Chen, Ji
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resources Utilizat, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Chen, Li,Chen, Ji,Jing, Yu,et al. Comprehensive appraisal and application of novel extraction system for heavy rare earth separation on the basis of coordination equilibrium effect[J]. Hydrometallurgy,2016,165:351-357.
APA	Chen, Li,Chen, Ji,Jing, Yu,&Li, Deqian.(2016).Comprehensive appraisal and application of novel extraction system for heavy rare earth separation on the basis of coordination equilibrium effect.Hydrometallurgy,165,351-357.
MLA	Chen, Li,et al."Comprehensive appraisal and application of novel extraction system for heavy rare earth separation on the basis of coordination equilibrium effect".Hydrometallurgy 165(2016):351-357.

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