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Supercritical Carbon Dioxide Fluid Leaching (SFL) of Uranium from Solid Wastes Using HNO3-tributylphosphate (TBP) Complex as a Reactant

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Uranium in the Aquatic Environment

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Abstract

Supercritical carbon dioxide (CO2) leaching method (SFL), which is based on the efficient and selective dissolution of UO2 and U3O8 with supercritical CO2 containing HNO3-tributylphosphate (TBP) complex at 333 K and 15 - 20 MPa, has been developed for the removal and recovery of uranium from the solid waste contaminated by uranium oxides. The decontamination factor of UO2 or U3O8 of higher than 500 were attained by the recommended procedure, which was demonstrated using synthetic solid waste samples of a mixture of the uranium oxides and sea sand.

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Authors and Affiliations

  1. Japan Atomic Energy Research Institute, Advanced Science Research Center, Tokai, Ibaraki, 319-1195, Japan

    Zenko Yoshida

  2. Japan Atomic Energy Research Institute, Advanced Science Research Center, Tokai, Ibaraki, 319-1195, Japan

    Yoshihiro Meguro

  3. Japan Atomic Energy Research Institute, Advanced Science Research Center, Tokai, Ibaraki, 319-1195, Japan

    Shuichi Iso

  4. Japan Atomic Energy Research Institute, Advanced Science Research Center, Tokai, Ibaraki, 319-1195, Japan

    Jin Ougiyanagi

  5. Department of Environmental Sciences, Faculty of Science, Ibaraki University, Mito, Ibaraki, 310-8521, Japan

    Jin Ougiyanagi

  6. Research Center for Nuclear Materials Recycle, Nagoya University, Tokai, Ibaraki, 319-1195, Japan

    Osamu Tomioka

  7. Research Center for Nuclear Materials Recycle, Nagoya University, Tokai, Ibaraki, 319-1195, Japan

    Youichi Enokida

  8. Department of Nuclear Engineering, Nagoya University, Furo-cho, Chikusa-ku,Nagoya, 464-8603, Japan

    Ichiro Yamamoto

Authors
  1. Zenko Yoshida
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  2. Yoshihiro Meguro
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  3. Shuichi Iso
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  4. Jin Ougiyanagi
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  5. Osamu Tomioka
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  6. Youichi Enokida
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  7. Ichiro Yamamoto
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Editor information

Editors and Affiliations

  1. Department of Geology, Technical University Bergakademie Freiberg, Gustav-Zeuner-Str. 12, 09596, Freiberg, Germany

    Broder J. Merkel

  2. Department of Geology, Technical University Bergakademie Freiberg, Gustav-Zeuner-Str. 12, 09596, Freiberg, Germany

    Britta Planer-Friedrich

  3. Department of Geology, Technical University Bergakademie Freiberg, Gustav-Zeuner-Str. 12, 09596, Freiberg, Germany

    Christian Wolkersdorfer

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© 2002 Springer-Verlag Berlin Heidelberg

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Yoshida, Z. et al. (2002). Supercritical Carbon Dioxide Fluid Leaching (SFL) of Uranium from Solid Wastes Using HNO3-tributylphosphate (TBP) Complex as a Reactant. In: Merkel, B.J., Planer-Friedrich, B., Wolkersdorfer, C. (eds) Uranium in the Aquatic Environment. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-55668-5_21

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  • DOI: https://doi.org/10.1007/978-3-642-55668-5_21

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-62877-1

  • Online ISBN: 978-3-642-55668-5

  • eBook Packages: Springer Book Archive

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