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Title: Anion effects in the extraction of lanthanide 2-thenoyltrifluoroacetone complexes into an ionic liquid

Abstract

The extraction of trivalent lanthanides from an aqueous phase containing 1 M NaClO{sub 4} into the room temperature ionic liquid 1-butyl-3-methylimidazolium nonafluoro-1-butane sulfonate by the beta-diketone extractant 2-thenoyltrifluoroacetone (Htta) was studied. Radiotracer distribution, absorption spectroscopy, time-resolved laser-induced fluorescence spectroscopy, and X-ray absorption fine structure measurements point to the extraction of multiple lanthanide species. At low extractant concentrations, fully hydrated aqua cations of the lanthanides are present in the ionic liquid phase. As the extractant concentration is increased 1:2 and 1:3 lanthanide:tta species are observed. In contrast, 1:4 Ln:tta complexes were observed in the extraction of lanthanides by Htta into 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide. (authors)

Authors:
; ;  [1];  [1];  [2];  [1];  [3];  [1];  [2]
  1. Argonne Natl Lab, Chem Sci and Engn Div, Argonne, IL 60439 (United States)
  2. (United States)
  3. (France)
Publication Date:
OSTI Identifier:
22273971
Resource Type:
Journal Article
Journal Name:
Separation Science and Technology
Additional Journal Information:
Journal Volume: 47; Journal Issue: 2; Other Information: Country of input: France; 51 refs.; This record replaces 45095204; Journal ID: ISSN 0149-6395
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; AQUEOUS SOLUTIONS; CHELATES; CHEMICAL STATE; CHLORATES; CONCENTRATION RATIO; CRYSTAL STRUCTURE; EUROPIUM COMPLEXES; SOLVENT EXTRACTION

Citation Formats

Jensen, Mark P., Beitz, James V., Rickert, Paul G., Borkowski, Marian, Los Alamos Natl Lab, Earth and Environm Sci Div, Carlsbad, NM,, Laszak, Ivan, Commisariat Energie Atom, DEN DPC SERC LANIE, Gif Sur Yvette,, Dietz, Mark L., and Wisconsin-Milwaukee Univ, Department of Chemistry and Biochemistry, Milwaukee, WI,. Anion effects in the extraction of lanthanide 2-thenoyltrifluoroacetone complexes into an ionic liquid. United States: N. p., 2012. Web. doi:10.1080/01496395.2011.620586.
Jensen, Mark P., Beitz, James V., Rickert, Paul G., Borkowski, Marian, Los Alamos Natl Lab, Earth and Environm Sci Div, Carlsbad, NM,, Laszak, Ivan, Commisariat Energie Atom, DEN DPC SERC LANIE, Gif Sur Yvette,, Dietz, Mark L., & Wisconsin-Milwaukee Univ, Department of Chemistry and Biochemistry, Milwaukee, WI,. Anion effects in the extraction of lanthanide 2-thenoyltrifluoroacetone complexes into an ionic liquid. United States. doi:10.1080/01496395.2011.620586.
Jensen, Mark P., Beitz, James V., Rickert, Paul G., Borkowski, Marian, Los Alamos Natl Lab, Earth and Environm Sci Div, Carlsbad, NM,, Laszak, Ivan, Commisariat Energie Atom, DEN DPC SERC LANIE, Gif Sur Yvette,, Dietz, Mark L., and Wisconsin-Milwaukee Univ, Department of Chemistry and Biochemistry, Milwaukee, WI,. Sun . "Anion effects in the extraction of lanthanide 2-thenoyltrifluoroacetone complexes into an ionic liquid". United States. doi:10.1080/01496395.2011.620586.
@article{osti_22273971,
title = {Anion effects in the extraction of lanthanide 2-thenoyltrifluoroacetone complexes into an ionic liquid},
author = {Jensen, Mark P. and Beitz, James V. and Rickert, Paul G. and Borkowski, Marian and Los Alamos Natl Lab, Earth and Environm Sci Div, Carlsbad, NM, and Laszak, Ivan and Commisariat Energie Atom, DEN DPC SERC LANIE, Gif Sur Yvette, and Dietz, Mark L. and Wisconsin-Milwaukee Univ, Department of Chemistry and Biochemistry, Milwaukee, WI,},
abstractNote = {The extraction of trivalent lanthanides from an aqueous phase containing 1 M NaClO{sub 4} into the room temperature ionic liquid 1-butyl-3-methylimidazolium nonafluoro-1-butane sulfonate by the beta-diketone extractant 2-thenoyltrifluoroacetone (Htta) was studied. Radiotracer distribution, absorption spectroscopy, time-resolved laser-induced fluorescence spectroscopy, and X-ray absorption fine structure measurements point to the extraction of multiple lanthanide species. At low extractant concentrations, fully hydrated aqua cations of the lanthanides are present in the ionic liquid phase. As the extractant concentration is increased 1:2 and 1:3 lanthanide:tta species are observed. In contrast, 1:4 Ln:tta complexes were observed in the extraction of lanthanides by Htta into 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide. (authors)},
doi = {10.1080/01496395.2011.620586},
journal = {Separation Science and Technology},
issn = {0149-6395},
number = 2,
volume = 47,
place = {United States},
year = {2012},
month = {7}
}