Thermodynamics of Nd-Ga-Al and U-Ga-Al alloys and uranium/neodymium separation factor in the molten Ga-Al/3LiCl-2KCl system / Smolenskii V.V., Novoselova A.V., Volkovich V.A., Osipenko A.G., Griffiths T.R. // Radiochemistry. - 2015. - V. 57, l. 6. - P. 591-595.

ISSN:

10663622

Type:

Article

Abstract:

The electrochemical behavior of Nd and U compounds in a 3LiCl-2KCl eutectic melt on Ga-Al eutectic alloy electrodes in the temperature interval 723-823 K was studied by zero-current potentiometry vs. chlorine reference electrode. The temperature dependences of the Nd and U activity coefficients in Ga-Al alloys were calculated: logγNd(Ga-Al) = 5.37-13467/T ± 0.23, logγU(Ga-Al) = 1.16-4962/T ± 0.07. The U/Nd separation factors in the molten salt-liquid metal system were determined: logθ = 1.76 + 2605/T ± 0.02. The separation factors obtained (θ = 2.29 × 105 at 723 K) show that the Ga-Al alloy is promising for future innovative technologies for spent nuclear fuel reprocessing. © 2015 Pleiades Publishing, Inc.

Author keywords:

neodymium; separation factor; thermodynamics; uranium

Index keywords:

нет данных

DOI:

10.1134/S1066362215060053

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https://www.scopus.com/inward/record.uri?eid=2-s2.0-84951286604&doi=10.1134%2fS1066362215060053&partnerID=40&md5=d4e1a41239bade0b24c3e77a7bb08a2a

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84951286604&doi=10.1134%2fS1066362215060053&partnerID=40&md5=d4e1a41239bade0b24c3e77a7bb08a2a
Affiliations	Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, ul. Akademicheskaya 20, Yekaterinburg, Russian Federation; Institute of Physics and Technology, Yeltsin Ural Federal University, ul. Mira 21, Yekaterinburg, Russian Federation; Research Institute of Atomic Reactors, Dimitrovgrad-10, Ulyanovsk oblast, Russian Federation; Energy Process Developments Ltd., London, United Kingdom
Author Keywords	neodymium; separation factor; thermodynamics; uranium
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Correspondence Address	Novoselova, A.V.; Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, ul. Akademicheskaya 20, Russian Federation; email: alena_novoselova@list.ru
Publisher	Maik Nauka Publishing / Springer SBM
CODEN	RDIOE
Language of Original Document	English
Abbreviated Source Title	Radiochemistry
Source	Scopus