Separation of Actinides from Rare Earth Elements by Electrorefining in LiCl-KCl Eutectic Salt.

• SAKAMURA Yoshiharu

  Central Research Institute of Electric Power Industry (CRIEPI) Oarai Res. Establishment, Japan Atomic Energy Research Institute,

• HIJIKATA Takatoshi

  Central Research Institute of Electric Power Industry (CRIEPI)

• KINOSHITA Kensuke

  Central Research Institute of Electric Power Industry (CRIEPI)

• INOUE Tadashi

  Central Research Institute of Electric Power Industry (CRIEPI)

• STORVICK T.S

  Missouri University Research Reactor, University of Missouri-Columbia

• KRUEGER C.L

  Missouri University Research Reactor, University of Missouri-Columbia

• GRANTHAM L.F

  Rocketdyne Division, Boeing North American

• FUSSELMAN S.P

  Rocketdyne Division, Boeing North American

• GRIMMETT D.L

  Rocketdyne Division, Boeing North American

• ROY J.J

  Rocketdyne Division, Boeing North American

Bibliographic Information

Other Title

• Separation of Actinides from Rare Earth

Abstract

A pyrometallurgical partitioning technology to recover actinides from high level radioactive wastes is being developed. In the process, actinides are separated from fission products by electrorefining in molten chloride systems. It is expected that REs (rare earth elements), main components of fission products are hardly separated from actinides. In order to estimate separation factors, electrorefining experiments to recover actinides from LiCl-KCl eutectic salt containing actinide (U, Np, Pu and Am) and RE (Y, La, Ce, Nd and Gd) chlorides were carried out at 450°C. Actinides were removed from a liquid cadmium anode and recovered as metal on a solid cathode. Typical cathode deposits were rough in appearance and contained 70-90wt% adhering salt. The current efficiency was low because some of the deposit occasionally fell from the cathode. It is shown that uranium, neptunium and plutonium are relatively easily separated from REs and that americium is accompanied by some of REs.

Journal

• Journal of Nuclear Science and Technology

  Journal of Nuclear Science and Technology 35 (1), 49-59, 1998

  Atomic Energy Society of Japan

Keywords

• high level radioactive wastes
• pyrometallurgical partitioning
• actinides
• rare earth elements
• molten salts
• LiCl-KCl eutectics
• electrorefining
• solid cathode
• liquid cadmium anode
• separation process

Details

• CRID: 1390282679071115648
• NII Article ID: 10002078788
• NII Book ID: AA00703720
• DOI: 10.3327/jnst.35.49
• COI: 1:CAS:528:DyaK1cXhs1Cmsr0%3D
• ISSN: 18811248
• ISSN: 00223131
• NDL BIB ID: 4384440
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4384440
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed