| Project/Area Number |
07558280
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 試験 |
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| Research Field |
エネルギー学一般・原子力学
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
FUJII Yasuhiko Tokyo Institute of Technology, (TITech.) Research Laboratory for Nuclear Reactors (RLNR), Professor, 原子炉工学研究所, 教授 (20016869)
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| Co-Investigator(Kenkyū-buntansha) |
HARADA Masayuki TITech, RLNR,Research Associate, 原子炉工学研究所, 助手 (20156516)
NOMURA Masao TITech, RLNR,Research Associate, 原子炉工学研究所, 教務職員 (60100997)
TOMIYASU Hiroshi TITech, RLNR,Professor, 原子炉工学研究所, 教授 (50016854)
OKAMOTO Makoto TITech, RLNR,Professor, 原子炉工学研究所, 教授 (40016853)
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| Project Period (FY) |
1995 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1996: ¥900,000 (Direct Cost: ¥900,000)
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| Keywords | Ion-Exchange Resin, / Chromatography, / Isotopes, / N-15, / Isotope-Separation, / Mass Analysis, / Isotope Separaion Coefficient, / HETP |
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| Research Abstract |
Recently attention has been placed on the enrichment of nitrogen isotope N-15, which is indispensable for production of nitride fuels to be used in Fast Neutron Reactors. The present work is devoted to the development of N-15 enrichment process based on ion exchange. In the present work, porous sulfonic acid type cation exchange resin, TITEC-H1 was synthesized ; 30% crosslinking, 200-400 mesh. Using this resin, ion exchange chromatography of NH_4+ ion band was conducted at different conditions of temperature, concentration of the eluent, and the flow rate.
The results show that around 1 M concentration is appropriate for the eluent. Temperature does not affects on the separation performance so largely as expected form other elements. The rate of the feed solution has shown a very interesting tendency relating to the HETP.The HETPs are increased in both sides of low flow rate and high flow rate, giving the minimum value at a certain flow rate. This pattern of HETP has been analyzed by the laminar-turbulent flow model.
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