Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 191: Issue 1
Reaction stoichiometry for coextraction of technetium(VII) with uranium(VI) by CMPO
Authors: M. Takeuchi 1 , S. Tanaka 1 , M. Yamawaki 1 , and S. Tachimori 2
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  • 1 The University of Tokyo Nuclear Engineering Research Laboratory Tokai-mura 319-11 Ibaraki-ken Japan
  • | 2 Japan Atomic Energy Research Institute Department of Fuel Cycle Safety Research Tokai-mura 319-11 Ibaraki-ken Japan
Pages:
189–199
Online Publication Date:
13 Aug 2005
Publication Date:
17 Mar 1995
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02035997
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Abstract  

The coextraction equilibrium of technetium(VII) and uranium(VI) from nictric acid solution was studied in a system involvingn-octyl(phenyl)-N,N-diisobutylcarbamoylmethyl phosphine oxide (CMPO) in decalin. Stoichiometry of technetium, uranium and CMPO in the Tc-U-CMPO complex was obtained from the distribution data by slope analysis. The results indicated that the enhanced extraction of technetium was caused by the formation of UO2NO3TcO4·nCMPO (wheren=2 and/or 3). It was found that this coextraction of technetium with uranium was well explained by using ion exchange reaction between UO2(NO3)2·2CMPO complex and TcO 4– .

Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 4
Issues
per Year		 12
Founder Akadémiai Kiadó
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Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
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Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
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ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

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