TY - GEN
T1 - Extraction chromatographic separation of trivalent minor actinides using iHex-BTP/SiO2-P resin
AU - Surugaya, N.
AU - Sano, Y.
AU - Yamamoto, M.
AU - Kurosawa, A.
AU - Hiyama, T.
PY - 2010/10/15
Y1 - 2010/10/15
N2 - The separation of trivalent minor actinides (Am(III) and Cm(III)) from lanthanides is a challenging issue because of difficulties associated with their mutual similarity in chemical behavior. However, this separation is important for the future nuclear fuel cycle for environmental friendship. Extraction chromatographic separation of the long-lived trivalent minor actinides has been performed to study the potential application of 2,6-bis(5,6-di-iso-hexyl-1,2,4- triazin-3-yl)-pyridine (iHex-BTP) impregnated into a porous silica support coated with styrene-divinylbenzene copolymer (SiO2-P). The adsorption and elution characteristics of Am(III) and Cm(III) in nitric acid medium have been investigated to separate them from lanthanides using a column packed with iHex-BTP/SiO2-P resin. Depending on the concentration of nitric acid solution as well as aqueous flow rate, a certain condition allowed us to selectively recover the fractions containing Am(III) and Cm(III) from a sample solution derived from the PUREX raffinate.
AB - The separation of trivalent minor actinides (Am(III) and Cm(III)) from lanthanides is a challenging issue because of difficulties associated with their mutual similarity in chemical behavior. However, this separation is important for the future nuclear fuel cycle for environmental friendship. Extraction chromatographic separation of the long-lived trivalent minor actinides has been performed to study the potential application of 2,6-bis(5,6-di-iso-hexyl-1,2,4- triazin-3-yl)-pyridine (iHex-BTP) impregnated into a porous silica support coated with styrene-divinylbenzene copolymer (SiO2-P). The adsorption and elution characteristics of Am(III) and Cm(III) in nitric acid medium have been investigated to separate them from lanthanides using a column packed with iHex-BTP/SiO2-P resin. Depending on the concentration of nitric acid solution as well as aqueous flow rate, a certain condition allowed us to selectively recover the fractions containing Am(III) and Cm(III) from a sample solution derived from the PUREX raffinate.
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U2 - 10.1021/bk-2010-1046.ch011
DO - 10.1021/bk-2010-1046.ch011
M3 - Conference contribution
AN - SCOPUS:84866123562
SN - 9780841225855
T3 - ACS Symposium Series
SP - 131
EP - 139
BT - Nuclear Energy and the Environment
PB - American Chemical Society
ER -