Extraction of rhodium(III) by a bisacylated diethylenetriamine derivative from hydrochloric acid solutions |
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| Authors: | N G Afzaletdinova Yu I Murinov Sh Yu Khazhiev S O Bondareva and R R Muslukhov |
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| Institution: | (1) Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8550, Japan;(2) Department of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University, Aramaki-Aza-Aoba, Sendai 980-8579, Japan;(3) O-arai Research and Development Center, Japan Atomic Energy Agency, Narita-cho, O-arai-machi, Higashi-ibaraki-gun, Ibaraki 311-1393, Japan;(4) Tokai Research and Development Center, Japan Atomic Energy Agency, Shirane Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan |
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| Abstract: | The extraction of rhodium(III) with a bisacylated diethylenetriamine derivative from hydrochloric acid solutions was studied.
Optimum conditions for rhodium(III) extraction were determined. It was found that, at a contact time to 10 min, the extraction
occurred by an ion-association mechanism. At a contact time longer than 10 min, rhodium(III) was extracted by a mixed mechanism
with the insertion of an extractant molecule into the inner coordination sphere of the rhodium(III) ion. The composition of
the extracted compound was determined using electronic, 1H and 13C NMR, and IR spectroscopy and elemental analysis, and the structure of this compound was proposed. |
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