Solvent Extraction of Yttrium by Task-specific Ionic Liquids Bearing Carboxylic Group

王威; 刘郁; 徐爱梅; 杨华玲; 崔红敏; 陈继

doi:10.1016/S1004-9541(12)60361-9

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Solvent Extraction of Yttrium by Task-specific Ionic Liquids Bearing Carboxylic Group

Updated：2026-01-06

- Solvent Extraction of Yttrium by Task-specific Ionic Liquids Bearing Carboxylic Group
- Chinese Journal of Chemical Engineering Vol. 20, Issue 1, Pages: 40-46(2012)
- Affiliations：
  
  1. State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences,Changchun,China,130022
  2. Graduate School of the Chinese Academy of Sciences,Beijing,China,100039
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(12)60361-9
  CLC： TQ028.32
- Published：2012
- Accepted：
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WANG Wei, LIU Yu, XU Aimei, YANG Hualing, CUI Hongmin, CHEN Ji. Solvent Extraction of Yttrium by Task-specific Ionic Liquids Bearing Carboxylic Group[J]. , 2012, 20(1): 40-46.
DOI：

WANG Wei, LIU Yu, XU Aimei, YANG Hualing, CUI Hongmin, CHEN Ji. Solvent Extraction of Yttrium by Task-specific Ionic Liquids Bearing Carboxylic Group[J]. , 2012, 20(1): 40-46. DOI： 10.1016/S1004-9541(12)60361-9.

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Abstract

A new kind of hydrophobic ionic liquids [1-alkyl-3-(1-carboxylpropyl)im

]

[PF

]

has been synthesized

and their extraction properties for Y(Ⅲ) in the nitric acid medium was also investigated.The effects of extractant concentration

equilibrium pH of aqueous phase

salt concentration

temperature

etc

.were discussed.The results show that this kind of Task-Specific Ionic Liquid (TSIL) needs to be saponified before being used for the Y(Ⅲ) extraction

and the extraction is acid dependent

and the extraction efficiency increases with the aqueous phase acidity decreasing.Furthermore

the loaded organic phase is easy to be stripped;more than 95% Y(Ⅲ) could be stripped from the loaded organic phase when the stripping acidity is higher than 0.07 mol·L

-1

.The slope analysis technique is used to investigate the extraction mechanism

and a possible cation-exchange extraction mechanism is proposed in the present extraction system.

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