Extraction of Pd(II), Rh(III) and Ru(III) from HNO3 aqueous solution to betainium bis(trifluoromethanesulfonyl)imide ionic liquid

Kotoe Sasaki; Koichiro Takao; Tomoya Suzuki; Takahiro Mori; Tsuyoshi Arai; Yasuhisa Ikeda

doi:10.1039/C4DT00091A

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Extraction of Pd(ii), Rh(iii) and Ru(iii) from HNO₃ aqueous solution to betainium bis(trifluoromethanesulfonyl)imide ionic liquid

Kotoe Sasaki,^a Koichiro Takao,^b Tomoya Suzuki,^b Takahiro Mori,^b Tsuyoshi Arai^a and Yasuhisa Ikeda*^b

Author affiliations

* Corresponding authors

^a Department of Materials Science, Shibaura Institute of Technology, 3-7-5, Toyosu, Koto-ku, 135-8548 Tokyo, Japan

^b Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, 2-12-1, O-okayama, Meguro-ku, 152-8550 Tokyo, Japan
E-mail: yikeda@nr.titech.ac.jp

Abstract

Extraction efficiencies of Pd(II), Rh(III), and Ru(III) from HNO₃(aq) to [Hbet][Tf₂N] were demonstrated, i.e., Pd(II) is the most extractable, Rh(III) is medium extractable, and Ru(III) is the least extractable. The extraction seems to proceed through coordination of betaine to the metal ions and the cation exchange of the formed complex with H⁺.

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Article information

DOI: https://doi.org/10.1039/C4DT00091A
Article type: Communication
Submitted: 10 Jan 2014
Accepted: 04 Feb 2014
First published: 05 Feb 2014

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Dalton Trans., 2014,43, 5648-5651

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Extraction of Pd(II), Rh(III) and Ru(III) from HNO₃ aqueous solution to betainium bis(trifluoromethanesulfonyl)imide ionic liquid

K. Sasaki, K. Takao, T. Suzuki, T. Mori, T. Arai and Y. Ikeda, Dalton Trans., 2014, 43, 5648 DOI: 10.1039/C4DT00091A

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