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

• Autorzy: Melchakov S. Y. , Maltsev D. S. , Volkovich V. A. , Yamshchikov L. F. , Lisienko D. G. , Osipenko A. G. , Rusakov M. A.

Identyfikatory

DOI

10.1515/nuka-2015-0116

• Konferencja: International Workshop “Towards safe and optimized separation processes, a challenge for nuclear scientists” (FP7 European Collaborative Project SACSESS) (22-24.04.2015 ; Warsaw, Poland)
• Języki publikacji: EN

Abstrakty

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.

Słowa kluczowe

EN

neodymium; uranium; gallium; separation factor; reductive extraction; pyrochemical reprocessing

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2015
• Tom: Vol. 60, No. 4, part 2
• Strony: 915--920
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Melchakov S. Y.

• Department of Rare Metals and Nanomaterials, Institute of Physics and Technology, Ural Federal University, 19 Mira Str., Ekaterinburg, 620002, Russia, Tel.: [phone], Fax: [phone]

autor

Maltsev D. S.

• Department of Rare Metals and Nanomaterials, Institute of Physics and Technology, Ural Federal University, 19 Mira Str., Ekaterinburg, 620002, Russia, Tel.: [phone], Fax: [phone]

autor

Volkovich V. A.

• Department of Rare Metals and Nanomaterials, Institute of Physics and Technology, Ural Federal University, 19 Mira Str., Ekaterinburg, 620002, Russia, Tel.: [phone], Fax: [phone]

autor

Yamshchikov L. F.

• Department of Rare Metals and Nanomaterials, Institute of Physics and Technology, Ural Federal University, 19 Mira Str., Ekaterinburg, 620002, Russia, Tel.: [phone], Fax: [phone]

autor

Lisienko D. G.

• Department of Physical and Chemical Methods of Analysis, Institute of Physics and Technology, Ural Federal University, 19 Mira Str., Ekaterinburg, 620002, Russia

autor

Osipenko A. G.

• JSC “Research Institute of Atomic Reactors”, 10 Dimitrova Str., Dimitrovgrad, Ul’yanovsk Region, 435510, Russia

autor

Rusakov M. A.

Bibliografia

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