Title of article
Extraction-separation of Eu(III)/Th(IV) Ions with a Phosphorylated Ligand in an Ionic Liquid
Author/Authors
Karamzadeh، Zinat نويسنده Faculty of Science,Department of Chemistry, Phase Equilibria Research Laboratory,University of Zanjan,Zanjan,Iran , , Yaftian، Mohammad Reza نويسنده Faculty of Science,Department of Chemistry, Phase Equilibria Research Laboratory,University of Zanjan,Zanjan,Iran , , Shiri Yekta، Zahra نويسنده Nuclear Science and Technology Research Institute (NSTRI),Tehran,Iran , , Nilchi، Abdolreza نويسنده Nuclear Science and Technology Research Institute (NSTRI),Tehran,Iran , , Dolatyari، Leila نويسنده Faculty of Science,Department of Chemistry, Phase Equilibria Research Laboratory,University of Zanjan,Zanjan,Iran ,
Issue Information
فصلنامه با شماره پیاپی 78 سال 2016
Pages
7
From page
89
To page
95
Abstract
Extraction-separation of Eu(III) and Th(IV) ions from nitrate media into the ionic liquid 1hexyl3methylimidazolium hexafluorophosphate by a phosphorylated salen extractant, bis(chlorophosphoryle)decahydro2,4di(2hydroxyphenyl)benzo[d][1,3,6]oxadiazepine (DPO), is investigated. It is found that Eu(III) ions are extracted via a solvation mechanism, and the extraction of Th(IV) ions proceeds through an ion exchange mechanism. The analysis of the experimental data reveals that the extraction of Eu(III) and Th(IV) ions is taken place by formation of Eu(DPO)(NO3)3 and Th(DPO)2(PF6)4 complexes. A significant selectivity towards thorium ions with respect to trivalent lanthanides (lanthanum, europium, and erbium) was observed. Thorium(IV) can be efficiently extracted from nitric acid solutions into the studied ionic liquid in the presence of DPO.
Keywords
Europium , Phosphorylated ligand , thorium , extraction , Separation , Ionic liquid
Journal title
Iranian Journal of Chemistry and Chemical Engineering (IJCCE)
Serial Year
2016
Journal title
Iranian Journal of Chemistry and Chemical Engineering (IJCCE)
Record number
2397634
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