Highly Selective Synergism for the Extraction of Lanthanoid(III) Ions with β-Diketones and Trioctylphosphine Oxide in an Ionic Liquid

被引：0
作者：
Hiroyuki Okamura
Hitomi Takagi
Taku Isomura
Kotaro Morita
Hirohisa Nagatani
Hisanori Imura
机构：
[1] Kanazawa University,Faculty of Chemistry, Institute of Science and Engineering
[2] Japan Atomic Energy Agency,Division of Chemistry for Nuclear Engineering, Nuclear Science and Engineering Directorate
来源：
Analytical Sciences | 2014年 / 30卷
关键词：
Ionic liquid; synergistic effect; lanthanoid(III); -diketone; trioctylphosphine oxide;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Selective synergism for the extraction of lanthanoids(III) (Ln) with β-diketones such as 2-thenoyltrifluoroacetone, 2-naphthoyltrifluoroacetone, and benzoylacetone has been investigated in the presence of trioctylphosphine oxide as a hydrophobic neutral ligand in 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide as an ionic liquid. The extractability of heavier Ln was remarkably enhanced, resulting in a significant improvement in the separation of Ln. It was found that the present synergism is ascribed to the formation of cationic ternary complexes, followed by ion exchange into the ionic liquid.
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页码：323 / 325
页数：2
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