Enrichment of U-232 by U(IV)-U(VI) Redox Ion Exchange Chromatography.

• NAKANISHI Takasi

  Faculty of Science, Kanazawa University

• HIGUCHI Nobuhiko

  Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology Asahi Glass Co.

• NOMURA Masao

  Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology

• AIDA Masao

  Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology

• FUJII Yasuhiko

  Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology

Abstract

The isotopic enrichment of ²³²U and ²³⁴U against ²³⁸U in the U(IV)-U(VI) exchange process has been studied by anion exchange chromatography. The enrichment of ²³²U in the uranium adsorption band was monitored by the activity ratios measured by α spectrometry and the isotopic abundances of ²³⁴U were determined by mass spectrometry. The results have shown that the isotopic enrichment is proportional to the mass difference among isotopes of ²³²U, ²³⁴U and ²³⁸U. The anomalous isotope effect previously observed for ²³⁵U was not observed for ²³²U. The ideal separation coefficient, εo (=S-1), between two isotopes of ²³²U and ²³⁸U at the ideal distribution state in the U(IV)-U(VI) exchange system has been inferred as 2.2×10^-3 at 308K.

Journal

• Journal of Nuclear Science and Technology

  Journal of Nuclear Science and Technology 33 (4), 341-345, 1996

  Atomic Energy Society of Japan

Keywords

• uranium isotopes
• uranium 232
• uranium 238
• uranium 234
• isotope separation
• isotope effect
• mass spectrometry
• alpha spectrometry
• ion exchange
• chromatography

Details

• CRID: 1390282679071662848
• NII Article ID: 10002074654
• NII Book ID: AA00703720
• DOI: 10.3327/jnst.33.341
• COI: 1:CAS:528:DyaK28Xjt1Cjsb4%3D
• ISSN: 18811248
• ISSN: 00223131
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed