Chloride Pyrometallurgy of Uranium Ore, (II) Selective Extraction of Uranium Using the Mixed Gas of Chlorine and Oxygen in the Presence of Activated Carbon

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著者

    • TAKI Tomihiro
    • Ningyo-Toge Works, Power Reactor and Nuclear Fuel Development Corporation
    • OTOMURA Keiichiro
    • International Division, Power Reactor and Nuclear Fuel Development Corporation
    • TAKENAKA Toshihide
    • Department of Production Systems Engineering, Toyohashi University of Technology
    • SATO Nobuaki
    • Institute for Advanced Materials Processing, Tohoku University
    • FUJINO Takeo
    • Institute for Advanced Materials Processing, Tohoku University

抄録

Selective extraction of uranium from a phosphate are was studied by using the mixed gas of Cl<SUB>2</SUB> and O<SUB>2</SUB>. On heating the ore and carbon mixture in Cl<SUB>2</SUB>, the volatilized chloride of uranium is accompanied by iron, aluminum, phosphorus and silicon chlorides. The addition of O<SUB>2</SUB> gas effectively lowered the volatilization ratios of aluminum, phosphorus and silicon. The ratio decreased with increasing oxygen flow rate up to 50ml/min at 1, 223K (Cl<SUB>2</SUB>:100ml/min, O<SUB>2</SUB>+N<SUB>2</SUB>: 400ml/min). The volatilization ratio of uranium was almost unchanged at 90% up to 50ml/min O<SUB>2</SUB> (carbon amount: 15wt%). The effect of the other parameters, i.e. Cl<SUB>2</SUB> flow rate, carbon amount, reaction temperature and time was examined.

収録刊行物

  • Journal of nuclear science and technology

    Journal of nuclear science and technology 33(4), p.327-332, 1996-04-25

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002074619
  • NII書誌ID(NCID)
    AA00703720
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00223131
  • データ提供元
    CJP書誌  J-STAGE 
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