TY - GEN
T1 - Attempts to improve radiolytic stability of amidic extractants
AU - Sugo, Yumi
AU - Sasaki, Yuji
AU - Kimura, Takaumi
AU - Sekine, Tsutomu
PY - 2007/12/1
Y1 - 2007/12/1
N2 - A tridentate diamide, N.N.N'.N'-tetraoctyldiglycolamide (TODGA) is very useful for the recovery of actinide ions from spent nuclear fuel Based on the mechanism of the radiolysis of TODGA in organic solution, an improvement of radiolytic stability of amidic extractants was attempted. The radiolytic degradation of TODGA was suppressed by the addition of appropriate compounds, due to reduction in the mole fraction of n-dodecane. In addition, by using the solvents having low ionization potentials, TODGA could be protected from radiation. Because the charge transfer reaction in the primary process was inhibited. It was also confirmed that aromatic substituents in the molecule effectively improved the radiolytic stability.
AB - A tridentate diamide, N.N.N'.N'-tetraoctyldiglycolamide (TODGA) is very useful for the recovery of actinide ions from spent nuclear fuel Based on the mechanism of the radiolysis of TODGA in organic solution, an improvement of radiolytic stability of amidic extractants was attempted. The radiolytic degradation of TODGA was suppressed by the addition of appropriate compounds, due to reduction in the mole fraction of n-dodecane. In addition, by using the solvents having low ionization potentials, TODGA could be protected from radiation. Because the charge transfer reaction in the primary process was inhibited. It was also confirmed that aromatic substituents in the molecule effectively improved the radiolytic stability.
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M3 - Conference contribution
AN - SCOPUS:45149104146
SN - 0894480553
SN - 9780894480553
T3 - GLOBAL 2007: Advanced Nuclear Fuel Cycles and Systems
SP - 1870
EP - 1873
BT - GLOBAL 2007
T2 - GLOBAL 2007: Advanced Nuclear Fuel Cycles and Systems
Y2 - 9 September 2007 through 13 September 2007
ER -