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

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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.

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  • Journal of nuclear science and technology  

    Journal of nuclear science and technology 35(1), 49-59, 1998-01-25 

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002078788
  • NII書誌ID(NCID)
    AA00703720
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    00223131
  • NDL 記事登録ID
    4384440
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A460
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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