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Separation Science and Technology Volume 47, 2012 - Issue 5
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EXTRACTION

Studies of a Solvent for GANEX Applications Containing CyMe4-BTBP and DEHBA in Cyclohexanone

Emma Aneheim Nuclear Chemistry & Industrial Materials Recycling, Department of Chemical and Biological Engineering, Chalmers University of Technology, Göteborg, SwedenCorrespondence[email protected]
,
Christian Ekberg Nuclear Chemistry & Industrial Materials Recycling, Department of Chemical and Biological Engineering, Chalmers University of Technology, Göteborg, Sweden
,
Mark R. S. Foreman Nuclear Chemistry & Industrial Materials Recycling, Department of Chemical and Biological Engineering, Chalmers University of Technology, Göteborg, Sweden
,
Elin Löfström-Engdahl Nuclear Chemistry & Industrial Materials Recycling, Department of Chemical and Biological Engineering, Chalmers University of Technology, Göteborg, Sweden
&
Nathalie Mabile Nuclear Chemistry & Industrial Materials Recycling, Department of Chemical and Biological Engineering, Chalmers University of Technology, Göteborg, Sweden
Pages 663-669 | Received 30 May 2011, Accepted 26 Sep 2011, Published online: 06 Apr 2012
 
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Abstract

Research focus within separation for transmutation in Europe today lies in the development of a solvent extraction separation process called GANEX (Group ActiNide EXtraction). In this type of process the actinides should be extracted as a group and separated from the lanthanides and the other fission and corrosion/activation products. One GANEX process has been developed combining the two extractants bis-triazine-bi-pyridine (BTBP) and tri-butyl phosphate (TBP) in cyclohexanone. In previous work the TBP has been successfully substituted with N,N-di-2-ethylhexyl-butyramide (DEHBA). In this paper, this exchange has been further studied investigating also fission product extraction as well as hydrolytic and radiolytic stability and acid extraction.

ACKNOWLEDGEMENTS

Bohumir Grüner and Zuzána Hájkova at IIC, Czech Republic, are acknowledged for performing the reported HPLC measurements.

This work was funded by the Swedish nuclear fuel and waste management company SKB and the European Union Project ACSEPT (No. 211267).

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