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Journal
2015 | 60 | 4 | 915-920
Article title

Uranium and neodymium partitioning in alkali chloride melts using low-melting gallium-based alloys

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EN
Abstracts
EN
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.
Publisher
Journal
Year
Volume
60
Issue
4
Pages
915-920
Physical description
Dates
published
1 - 12 - 2015
received
18 - 6 - 2015
accepted
25 - 8 - 2015
online
30 - 12 - 2015
References
  • 1. Kinoshita, K., Kurata, M., & Inoue, T. (2000). Estimation of material balance in pyrometallurgical partitioning process of transuranic elements from high-level liquid waste. J. Nucl. Sci. Technol., 37(1), 75-83.
  • 2. Moriyama, H., Kinoshita, K., Asaoka, Y., Moritani, K., & Ito, Y. (1990). Equilibrium distributions of actinides and fission products in pyrochemical separation systems (II) LiCl-KCl/Cd system. J. Nucl. Sci. Technol., 27(10), 937-943. DOI: 10.1080/18811248.1990.9731273.[Crossref]
  • 3. Lebedev, V. A. (1993). The selectivity of liquid metal electrodes in molten halide salts. Chelyabinsk: Metallurgya. (in Russian).
  • 4. Toda, T., Maruyama, T., Moritani, K., Moriyama, H., & Hayashi, H. (2009). Thermodynamic properties of lanthanides and actinides for reductive extraction of minor actinides. J. Nucl. Sci. Technol., 46(1), 18-25. DOI: 10.1080/18811248.2007.9711502.[Crossref]
  • 5. Massalski, T. B. (1996). ASM binary phase diagrams. [computer software]. Materials Park: ASM.
  • 6. Toda, T., Maruyama, T., Moritani, K., Moriyama, H., & Hayashi, H. (2009). Separation factor of americium from cerium in molten chloride - liquid gallium reductive extraction system. Electrochemistry, 77(8), 649-651.
  • 7. Lambertin, D., Chedhomme, S., Bourges, G., Sanchez, S., & Picard, G. S. (2005). Activity coeffi cients of plutonium and cerium in liquid gallium at 1073 K: application to a molten salt/solvent metal separation concept. J. Nucl. Mater., 341, 131-140. DOI: 10.1016/j. jnucmat.2005.01.009.
  • 8. Novoselova, A. V., & Smolenskii, V. V. (2013). Electrochemical study of the properties of Nd(III) and Nd(II) ions in molten LiCl-KCl-CsCl eutectic and individual CsCl. Rus. J. Electrochem., 49(10), 931-937. DOI: 10.1134/S1023193513100121.[Crossref]
  • 9. Maltsev, D. S., Volkovich, V. A., Vladykin, E. N., & Vasin, B. D. (2014). An electrochemical study of uranium (III) and (IV) species in fused alkali chlorides. ECS Trans., 64(4), 357-367. DOI: 10.1149/06404.0357ecst.[Crossref]
  • 10. Kober, V. I., Nichkov, I. F., Raspopin, S. P., & Kuzminikh, V. M. (1979). Thermodynamic properties of saturated by neodymium alloys based on low melting metals. In Proceedings of the IV Soviet Conference on Thermodynamics Metal Systems, 28 May - 1 June 1979 (Vol. 2, pp. 72-76). Alma-Ata: Nauka. (in Russian).
  • 11. Vnuchkova, L. A., Bayanov, A. P., & Serebrennikov, V. V. (1972). Thermodynamics of interaction of gallium with neodymium. Zh. Fiz. Khim., 46(4), 1052.
  • 12. Yatsenko, S. P. (1974). Gallium. Interaction with metals. Moscow: Nauka. (in Russian).
  • 13. Melchakov, S. Yu., Yamshchikov, L. F., Osipenko, A. G., & Rusakov, M. A. (2014). Solubility of neodymium in liquid gallium, indium and metallic compositions on their basis. Rasplavy, 6, 41-49.
  • 14. Smolenski, V., Novoselova, A., Osipenko, A., Kormilitsyn, M., & Luk’yanova, Ya. (2014). Thermodynamics of separation of uranium from neodymium between the gallium-indium liquid alloy and the LiCl-KCl molten salt phases. Electrochim. Acta, 133, 354-358. DOI: 10.1016/j.electacta.2014.04.042.[Crossref][WoS]
  • 15. Melchakov, S. Yu., Yamshchikov, L. F., Osipenko, A. G., Pozdeev, P. A., & Rusakov, M. A. (2014). The solubility and excessive thermodynamic characteristics of Pr and Nd in the eutectic alloy Ga-Sn. Rasplavy, 5, 7-12.
  • 16. Volkovich, V. A., Maltsev, D. S., Yamshchikov, L. F., Melchakov, S. Yu., Shchetinskiy, A. V., Osipenko, A. G., & Kormilitsyn, M. V. (2013). Thermodynamic properties of uranium in Ga-In based alloys. J. Nucl. Mater., 438, 94-98. DOI: 10.1016/j.jnucmat. 2013.03.016.[Crossref]
  • 17. Volkovich, V. A., Maltsev, D. S., Yamshchikov, L. F., & Osipenko, A. G. (2015). Thermodynamic properties of uranium in liquid gallium, indium and their alloys. J. Nucl. Mater., 464, 263-269. DOI: 10.1016/j. jnucmat.2015.04.054.[Crossref]
  • 18. Maltsev, D. S., Volkovich, V. A., Yamshchikov, L. F., & Chukin, A. V. (2015). Thermodynamics of U in Ga-Sn eutectic alloy. In Physics, Technology, Innovation: II International Conference, 20-24 April 2015 (pp. 195-196). Ekaterinburg, Russia: Ural Federal University. (in Russian).
  • 19. Lebedev, V. A., Kober, V. A., & Yamshchikov, L. F. (1989). Thermochemistry of alloys of rare earth and actinide elements. Chelyabinsk: Metallurgya. (in Russian).
  • 20. Melchakov, S. Yu., Maltsev, D. S., Volkovich, V. A., Yamshchikov, L. F., & Osipenko, A. G. (2014). Separation of uranium and lanthanides in a fused salt - liquid gallium based alloy system. ECS Trans., 64(4), 369-375. DOI: 10.1149/06404.0369ecst.[Crossref]
  • 21. Volkovich, V., Griffi ths, T. R., Fray, D. J., Fields, M., & Wilson, P. D. (1996). Oxidation of UO2 in molten alkali-carbonate based mixtures: Formation of uranates and diuranates. J. Chem. Soc. Faraday Trans., 92(24), 5059-5065.
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.-psjd-doi-10_1515_nuka-2015-0116
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