2013 Fiscal Year Final Research Report
Activity coefficient of actinide ions in molten salts for pyroprocess
| Project/Area Number |
22360403
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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 | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
YAMANA Hajimu 京都大学, 原子炉実験所, 教授 (30283683)
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| Co-Investigator(Kenkyū-buntansha) |
FUJII Toshiyuki 京都大学, 原子炉実験所, 准教授 (10314296)
UEHARA Akihiro 京都大学, 原子炉実験所, 助教 (30402952)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Keywords | 乾式再処理 / 活量係数 / アクチニド / ランタニド / 溶融塩 / 錯体構造 / 電気化学 / 分光化学 |
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| Research Abstract |
Thermodynamic stability and coordination structure of lanthanides (Ln) and actinides (An) complexes in various molten chloride mixtures were investigated by using electrochemical transient techniques and absorption spectrophotometry, respectively. It was found that the strength of Coulombic interaction between solvent cations and the Ln and An complexes is the basic factor to control the solvation effect of molten salt media on the thermodynamic stability of the complexes. It is useful information on the estimation on the thermodynamic stability of Ln depending on the composition of molten chlorides and mutual separation of Ln and An.
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