Uranium and neodymium partitioning in alkali chloride melts using low-melting gallium-based alloys / Melchakov S.Y., Maltsev D.S., Volkovich V.A., Yamshchikov L.F., Lisienko D.G., Osipenko A.G., Rusakov M.A. // Nukleonika. - 2015. - V. 60, l. 4. - P. 915-920.

ISSN:
00295922
Type:
Article
Abstract:
Partitioning of uranium and neodymium was studied in a 'molten chloride salt - liquid Ga-X (X = In or Sn) alloy' system. Chloride melts were based on the low-melting ternary LiCl-KCl-CsCl eutectic. Nd/U separation factors were calculated from the thermodynamic data as well as determined experimentally. Separation of uranium and neodymium was studied using reductive extraction with neodymium acting as a reducing agent. Efficient partitioning of lanthanides (Nd) and actinides (U), simulating fission products and fissile materials in irradiated nuclear fuels, was achieved in a single stage process. The experimentally observed Nd/U separation factor valued up to 106, depending on the conditions.
Author keywords:
Gallium; Neodymium; Pyrochemical reprocessing; Reductive extraction; Separation factor; Uranium
Index keywords:
нет данных
DOI:
10.1515/nuka-2015-0116
Смотреть в Scopus:
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84957606124&doi=10.1515%2fnuka-2015-0116&partnerID=40&md5=12fd4e015e9db8e80369a367e2a5ea12
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Link https://www.scopus.com/inward/record.uri?eid=2-s2.0-84957606124&doi=10.1515%2fnuka-2015-0116&partnerID=40&md5=12fd4e015e9db8e80369a367e2a5ea12
Affiliations Department of Rare Metals and Nanomaterials, Institute of Physics and Technology, Ural Federal University, 19 Mira Str., Ekaterinburg, Russian Federation; Department of Physical and Chemical Methods of Analysis, Institute of Physics and Technology, Ural Federal University, 19 Mira Str., Ekaterinburg, Russian Federation; JSC 'Research Institute of Atomic Reactors', 10 Dimitrova Str., Dimitrovgrad, Ul'yanovsk Region, Russian Federation
Author Keywords Gallium; Neodymium; Pyrochemical reprocessing; Reductive extraction; Separation factor; Uranium
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Correspondence Address Melchakov, S.Y.; Department of Rare Metals and Nanomaterials, Institute of Physics and Technology, Ural Federal University, 19 Mira Str., Russian Federation; email: s.yu.melchakov@gmail.com
Publisher Institute of Nuclear Chemistry and Technology
Language of Original Document English
Abbreviated Source Title Nukleonika
Source Scopus