| Project/Area Number |
19560847
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
YAITA Tsuyoshi Japan Atomic Energy Agency, 量子ビーム応用研究部門, 研究主幹 (40370481)
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| Co-Investigator(Kenkyū-buntansha) |
SUZUKI Shinichi 独立行政法人日本原子力研究開発機構, 量子ビーム応用研究部門, 研究副主幹 (60354841)
OKAMOTO Yoshihiro 独立行政法人日本原子力研究開発機構, 量子ビーム応用研究部門, 研究主幹 (70370369)
SHIWAKU Hideaki 独立行政法人日本原子力研究開発機構, 量子ビーム応用研究部門, 研究副主幹 (10222043)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2009: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
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| Keywords | 逆ミセル / 再処理 / 溶媒抽出 / 第三相制御 / 中性子小核散乱 / 中性子小角散乱 / モノアミド / ウラン / TBP / 第3相 / XAFS / DHAO / 第三相 / トリウム / TODGA / 小角散乱 / 構造解析 / アクチノイド |
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| Research Abstract |
The formation mechanism for the reverse micelle which is as an origin of the third phase in the extraction was elucidated by small angle neutron scattering. From analysis based on Baxter model, species of reverse micelle in the extraction system is one oligomer and increase in number of oligomer would result in a visible third phase formation. The micelle formation is strongly correlated with alkyl chain length of an extractant and thus, this length is considered to be an important factor to suppress the third phase formation. Furthermore, the curves of the third phase formation in the U(IV) extraction systems suggested that the critical micelle concentration of an extraction system decreased drastically.
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