Premium
Reversed micelle synergistic extraction from phosphonium ionic liquid extractants in diluent for rare earth
Author(s) -
Dong Yamin,
Sun Xiaoqi,
Wang Yanliang,
Chai Yujun
Publication year - 2016
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.15179
Subject(s) - phosphonium , extraction (chemistry) , diluent , ionic liquid , chemistry , micelle , rare earth , saponification , toluene , critical micelle concentration , chromatography , inorganic chemistry , nuclear chemistry , organic chemistry , mineralogy , catalysis , aqueous solution
The first synergistic extraction between quaternary phosphonium type ionic liquid extractants in toluene for rare earth was reported in this article. There were two different ion‐association mechanisms in the synergistic extraction system. The formed reversed micelles contributed to increase extractability of the synergistic extraction system to a considerable extent. On the one hand, million tons of saponification wastewater from acidic extractants may be avoided by developing the extraction system using bifunctional ionic liquid extractants. On the other hand, the novel synergistic extraction offers an effective strategy to increase the extractabilities of industrial extractants. This article reveals sustainable and efficient potentials for industrial rare earth separation. © 2016 American Institute of Chemical Engineers AIChE J , 62: 2163–2169, 2016