Extraction behavior of indium with TOPO into ionic liquids

Fukiko Kubota; Yosuke Shimobori; Yusuke Koyanagi; Kazunori Nakashima; Kojiro Shimojo; Noriho Kamiya; Masahiro Goto

Extraction behavior of indium with TOPO into ionic liquids

Fukiko Kubota, Yosuke Shimobori, Yusuke Koyanagi, Kazunori Nakashima, Kojiro Shimojo, Noriho Kamiya, Masahiro Goto

Applied Chemistry

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

The extraction behavior of In³⁺ into ionic liquids, [C _nmim][Tf₂N], was investigated with trioctylphosphine oxide (TOPO) as the extractant and compared with that of a conventional organic solvent system. In the n-dodecane system, the extractability of In³⁺ increased with increasing hydrochloric acid concentration in the feed aqueous phase. On the contrary when using ionic liquids, In³⁺ was more extracted at lower concentrations of hydrochloric acid. The contrast between the two systems is probably due to the difference in their extraction mechanisms. Extraction and separation properties of In³⁺ from Sn⁴⁺, Fe³⁺and Al³⁺ were also examined. Indium was quantitatively extracted into the ionic liquid phase and the separation efficiency from other metal ions, especially from Fe³⁺ was enhanced compared with that in the organic solvent system.

Original language	English
Pages (from-to)	151-155
Number of pages	5
Journal	Solvent Extraction Research and Development
Volume	16
Publication status	Published - 2009

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

Cite this

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title = "Extraction behavior of indium with TOPO into ionic liquids",

abstract = "The extraction behavior of In3+ into ionic liquids, [C nmim][Tf2N], was investigated with trioctylphosphine oxide (TOPO) as the extractant and compared with that of a conventional organic solvent system. In the n-dodecane system, the extractability of In3+ increased with increasing hydrochloric acid concentration in the feed aqueous phase. On the contrary when using ionic liquids, In3+ was more extracted at lower concentrations of hydrochloric acid. The contrast between the two systems is probably due to the difference in their extraction mechanisms. Extraction and separation properties of In3+ from Sn4+, Fe3+and Al3+ were also examined. Indium was quantitatively extracted into the ionic liquid phase and the separation efficiency from other metal ions, especially from Fe3+ was enhanced compared with that in the organic solvent system.",

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T1 - Extraction behavior of indium with TOPO into ionic liquids

AU - Kubota, Fukiko

AU - Shimobori, Yosuke

AU - Koyanagi, Yusuke

AU - Nakashima, Kazunori

AU - Shimojo, Kojiro

AU - Kamiya, Noriho

AU - Goto, Masahiro

PY - 2009

Y1 - 2009

N2 - The extraction behavior of In3+ into ionic liquids, [C nmim][Tf2N], was investigated with trioctylphosphine oxide (TOPO) as the extractant and compared with that of a conventional organic solvent system. In the n-dodecane system, the extractability of In3+ increased with increasing hydrochloric acid concentration in the feed aqueous phase. On the contrary when using ionic liquids, In3+ was more extracted at lower concentrations of hydrochloric acid. The contrast between the two systems is probably due to the difference in their extraction mechanisms. Extraction and separation properties of In3+ from Sn4+, Fe3+and Al3+ were also examined. Indium was quantitatively extracted into the ionic liquid phase and the separation efficiency from other metal ions, especially from Fe3+ was enhanced compared with that in the organic solvent system.

AB - The extraction behavior of In3+ into ionic liquids, [C nmim][Tf2N], was investigated with trioctylphosphine oxide (TOPO) as the extractant and compared with that of a conventional organic solvent system. In the n-dodecane system, the extractability of In3+ increased with increasing hydrochloric acid concentration in the feed aqueous phase. On the contrary when using ionic liquids, In3+ was more extracted at lower concentrations of hydrochloric acid. The contrast between the two systems is probably due to the difference in their extraction mechanisms. Extraction and separation properties of In3+ from Sn4+, Fe3+and Al3+ were also examined. Indium was quantitatively extracted into the ionic liquid phase and the separation efficiency from other metal ions, especially from Fe3+ was enhanced compared with that in the organic solvent system.

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Extraction behavior of indium with TOPO into ionic liquids

Abstract

All Science Journal Classification (ASJC) codes

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