Separation of rare earths from transition metals by liquid-liquid extraction from a molten salt hydrate to an ionic liquid phase

Dalton Transactions : an International Journal of Inorganic Chemistry
Alok Rout, Koen Binnemans

Abstract

The solvent extraction of trivalent rare-earth ions and their separation from divalent transition metal ions using molten salt hydrates as the feed phase and an undiluted fluorine-free ionic liquid as the extracting phase were investigated in detail. The extractant was tricaprylmethylammonium nitrate, [A336][NO3], and the hydrated melt was calcium nitrate tetrahydrate, Ca(NO3)2·4H2O. The extraction behavior of rare-earth ions was studied for solutions of individual elements, as well as for mixtures of rare earths in the hydrated melt. The influence of different extraction parameters was investigated: the initial metal loading in the feed phase, percentage of water in the feed solution, equilibration time, and the type of hydrated melt. The extraction of rare earths from Ca(NO3)2·4H2O was compared with extraction from CaCl2·4H2O by [A336][Cl] (Aliquat 336). The nitrate system was found to be the better one. The extraction and separation of rare earths from the transition metals nickel, cobalt and zinc were also investigated. Remarkably high separation factors of rare-earth ions over transition metal ions were observed for extraction from Ca(NO3)2·4H2O by the [A336][NO3] extracting phase. Furthermore, rare-earth ions could be sep...Continue Reading

References

Jul 29, 2004·Chemistry : a European Journal·Andrew P AbbottRaymond K Rasheed
Jun 17, 2006·Chemical Communications : Chem Comm·Alberto ArceKenneth R Seddon
Sep 20, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Kojiro ShimojoHirochika Naganawa
Jul 8, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Xiaoqi SunSheng Dai
Aug 11, 2011·Chemical Communications : Chem Comm·A P AbbottK S Ryder
May 16, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Marieke Bonnaffé-MoityIsabelle Billard
Nov 9, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Ajay B PatilPrasanta K Mohapatra
Feb 13, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Isabelle BillardClotilde Gaillard
Apr 19, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Xiaoqi SunSheng Dai
May 15, 2013·Physical Chemistry Chemical Physics : PCCP·Sil WellensKoen Binnemans

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Citations

Sep 2, 2014·International Journal of Molecular Sciences·Jesik ParkChurl Kyoung Lee
Aug 19, 2015·Chemistry : a European Journal·Sobhan ChatterjeeAlok Ranjan Paital
Nov 5, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Nicolas PapaiconomouEric Chainet
Jun 1, 2016·Physical Chemistry Chemical Physics : PCCP·Alok Rout, Koen Binnemans
Oct 7, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Lenka SvecovaIsabelle Billard
Mar 16, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Clio DefermKoen Binnemans
May 23, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Wenhui LiuYanzhao Yang
Nov 18, 2017·Physical Chemistry Chemical Physics : PCCP·Yutaro KawazuToshiyuki Takamuku
Dec 18, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Hongmei SuYanzhao Yang

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