Extraction Behavior of Rare Earths in Ion Liquid Extraction System Using 1-Butyl-3-Methyl-Imidazolium Hexafluorophosphate and 5,7-Dichloro-8-Hydroxy Quinoline-Reference-Cited by-同舟云学术

Extraction Behavior of Rare Earths in Ion Liquid Extraction System Using 1-Butyl-3-Methyl-Imidazolium Hexafluorophosphate and 5,7-Dichloro-8-Hydroxy Quinoline

Published:2012-07 Issue: Volume:189 Page:75-79
ISSN:1662-7482
Container-title:Applied Mechanics and Materials
language:
Short-container-title:AMM

Author:

Pan Zhong Wei¹,Zhao Sheng Guo²,Wu Tian Ci³,Pan Jin Ding³

Affiliation:

1. Quanzhou Normal University

2. Imports and Exports Inspection Bureau of Gansu

3. Xintai Shoe Material Co.,Ltd

Abstract

The extraction behavior of five rare earth ions (RE3+) was investigated in ionic liquid (IL) extraction system using 1-butyl-3-methyl-imidazolium hexafluorophosphate ([Bmim]PF6) ionic liquid as extraction solvent and 5,7-dichloro-8-hydroxy quinoline (HQ) as extractant. The extraction percentage of RE3+ using [Bmim]PF6 was less than 8% without HQ. When sufficient HQ was included in IL phase, the extraction percentage of RE3+ could be higher than 99% except La3+. The extracted species in the RE3+-[Bmim]PF6-HQ system was neutral REQ3 and complete recovery of RE3+ extracted into [Bmim]PF6 can be achieved using the mixture of hydrazine hydrate and ethylenediamine tetraacetic acid (EDTA) as stripping agent. [Bmim]PF6 can be recycled in the experiment.

Publisher

Trans Tech Publications, Ltd.

Link

https://www.scientific.net/AMM.189.75.pdf

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