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

Stanislav Yu Melchakov; Dmitry S. Maltsev; Vladimir A. Volkovich; Leonid F. Yamshchikov; Dmitry G. Lisienko; Aleksandr G. Osipenko; Mikhail A. Rusakov

doi:10.1515/nuka-2015-0116

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

Stanislav Yu Melchakov
, Dmitry S. Maltsev
, Vladimir A. Volkovich
, Leonid F. Yamshchikov
, Dmitry G. Lisienko
, Aleksandr G. Osipenko
, Mikhail A. Rusakov

Nanomaterials Chemistry Group

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

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.

Original language	English
Pages (from-to)	915-920
Number of pages	6
Journal	Nukleonika
Volume	60
Issue number	4
DOIs	https://doi.org/10.1515/nuka-2015-0116
State	Published - 2015

Keywords

Gallium
Neodymium
Pyrochemical reprocessing
Reductive extraction
Separation factor
Uranium

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title = "Uranium and neodymium partitioning in alkali chloride melts using low-melting gallium-based alloys",

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.",

keywords = "Gallium, Neodymium, Pyrochemical reprocessing, Reductive extraction, Separation factor, Uranium",

author = "Melchakov, \{Stanislav Yu\} and Maltsev, \{Dmitry S.\} and Volkovich, \{Vladimir A.\} and Yamshchikov, \{Leonid F.\} and Lisienko, \{Dmitry G.\} and Osipenko, \{Aleksandr G.\} and Rusakov, \{Mikhail A.\}",

year = "2015",

doi = "10.1515/nuka-2015-0116",

language = "English",

volume = "60",

pages = "915--920",

journal = "Nukleonika",

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publisher = "Sciendo",

number = "4",

}

TY - JOUR

T1 - Uranium and neodymium partitioning in alkali chloride melts using low-melting gallium-based alloys

AU - Melchakov, Stanislav Yu

AU - Maltsev, Dmitry S.

AU - Volkovich, Vladimir A.

AU - Yamshchikov, Leonid F.

AU - Lisienko, Dmitry G.

AU - Osipenko, Aleksandr G.

AU - Rusakov, Mikhail A.

PY - 2015

Y1 - 2015

N2 - 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.

AB - 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.

KW - Gallium

KW - Neodymium

KW - Pyrochemical reprocessing

KW - Reductive extraction

KW - Separation factor

KW - Uranium

UR - https://www.scopus.com/pages/publications/84957606124

U2 - 10.1515/nuka-2015-0116

DO - 10.1515/nuka-2015-0116

M3 - Article

AN - SCOPUS:84957606124

SN - 0029-5922

VL - 60

SP - 915

EP - 920

JO - Nukleonika

JF - Nukleonika

IS - 4

ER -

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

Abstract

Keywords

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