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Investigation of electrorefining of metallic alloy fuel onto solid Al cathodes

Cassayre, Laurent and Malmbeck, Rikard and Masset, Patrick and Rebizant, Jean and Serp, Jérôme and Soucek, Pavel and Glatz, Jean-Paul Investigation of electrorefining of metallic alloy fuel onto solid Al cathodes. (2007) Journal of Nuclear Materials, vol. 360 (n° 1). pp. 49-57. ISSN 0022-3115

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Official URL: http://dx.doi.org/10.1016/j.jnucmat.2006.08.013

Abstract

This work concerned the electrorefining of UZr and UPuZr alloys on a solid aluminium cathode, in the LiCl-KCl eutectic melt containing U3+, Pu3+, Np3+, Zr2+ or Zr 4+, Am3+, Nd3+, Y3+, Ce3+ and Gd3+ chlorides. During constant current electrolyses, the use of a cathodic cut-off potential (-1.25 V vs. Ag/AgCl) allowed to selectively deposit actinides (mainly U), while lanthanides remainedin the salt. The aim was to determine the maximal load achievable on a single aluminium electrode. The total exchange charge was 4300 C, which represents the deposition of 3.72 g of actinides in 4.17 g Al, yielding a composition of 44.6 wt% An in Al. It was shown that the melting of the cathode contributed to increase the total amount of actinides deposited on the aluminium.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Journal of Nuclear Materials website : http://www.sciencedirect.com/science/journal/00223115
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > Institute for Transuranium Elements - ITU (GERMANY)
Laboratory name:
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Deposited By:Hélène Dubernard

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