Investigation of electrorefining of metallic alloy fuel onto solid Al cathodes

Cassayre, Laurent; Malmbeck, Rikard; Masset, Patrick; Jean, Rebizant; Serp, Jérôme; Souček, P.; Glatz, Jean‐Paul

doi:10.1016/j.jnucmat.2006.08.013

Cited by 63 publications

(37 citation statements)

References 10 publications

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“…The cathodic branch of the voltammograms corresponds to the formation of the An-Al alloy at the salt/electrode interface whereas the anodic branch is ascribed to the extraction of the actinide from the alloy formed during the cathodic sweep. The potentials of alloy formation between the different actinides and Al were measured at the crossing of the abscissa and the line formed by the anodic and cathodic branches [25]. On the basis of these voltammograms a graphic determination of the equilibrium potentials E eq M(III)/M(Al) of each compound is possible, as shown in Fig.…”

Section: Anal 4 Alloy Potential Formationmentioning

confidence: 99%

Assessment of the Thermochemical Properties of Actinides in Molten Chlorides

Masset

Apostolidis

Malmbeck

et al. 2008

Zeitschrift Für Naturforschung A

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The electrochemical properties of the chlorides of the actinides U, Pu, Np and Am (AnCl 3 ) were investigated by transient electrochemical techniques in the LiCl-KCl eutectic at 400 -550 • C. The diffusion coefficients of the cations and the apparent standard potentials of the redox systems on an inert W electrode were measured. The Gibbs energy of dilute solutions of AnCl 3 as well as the activity coefficients were derived from electrochemical measurements. In addition, the electrochemical behaviour of the actinides on an Al electrode was investigated. They formed AnAl 4 alloys, the formation potentials of which allowed a quantitative recovery of the actinides and their separation from fission products and especially from lanthanides. In addition, the thermochemical properties of the AnAl 4 alloys were determined by electrochemical measurements.

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Section: Anal 4 Alloy Potential Formationmentioning

confidence: 99%

Assessment of the Thermochemical Properties of Actinides in Molten Chlorides

Masset

Apostolidis

Malmbeck

et al. 2008

Zeitschrift Für Naturforschung A

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“…Several separation techniques are examined as precipitation with oxide ions [1], electrorefining [2][3][4] or reductive extraction [5]. Reductive extraction is considered as the more efficient process for the French option (fluoride/aluminium) and it is also considered within the Japanese process in molten chloride with bismuth.…”

Section: Introductionmentioning

confidence: 99%

Co-reduction of aluminium and lanthanide ions in molten fluorides: Application to cerium and samarium extraction from nuclear wastes

Gibilaro

Massot

Chamelot

et al. 2009

Electrochimica Acta

104

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“…Pyrochemical methods and especially electrochemistry in molten salts have already provided promising results [1][2][3][4][5][6][7]. One of the key aims of the reprocessing is lanthanide extraction from the nuclear waste.…”

Section: Introductionmentioning

confidence: 99%

Neodymium and gadolinium extraction from molten fluorides by reduction on a reactive electrode

et al. 2009

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This work describes the electrochemical extraction on a reactive cathode (Cu, Ni) of two lanthanides Ln (Ln = Nd and Gd) from molten LiF-CaF 2 medium at 840 and 920°C for Nd and 940°C for Gd. Extraction runs have been performed and the operating conditions (cathodic material and temperature) optimized. The titration of the Nd and Gd concentrations in the melt during extraction used square wave voltammetry. At the end of each run, the residual Ln content was checked by ICP-AES; the extraction efficiencies of the two lanthanides were found to be more than 99.8% on both reactive substrates.

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Investigation of electrorefining of metallic alloy fuel onto solid Al cathodes

Cited by 63 publications

References 10 publications

Assessment of the Thermochemical Properties of Actinides in Molten Chlorides

Assessment of the Thermochemical Properties of Actinides in Molten Chlorides

Co-reduction of aluminium and lanthanide ions in molten fluorides: Application to cerium and samarium extraction from nuclear wastes

Neodymium and gadolinium extraction from molten fluorides by reduction on a reactive electrode

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