Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Am and Eu extraction from acidic media by synergistic mixtures of substituted bis-tetrazolyl pyridines with chlorinated cobalt dicarbollide. / Smirnov, I. V.; Chirkov, A. V.; Babain, V. A.; Pokrovskaya, E. Y.; Artamonova, T. A.
в: Radiochimica Acta, Том 97, № 10, 05.11.2009, стр. 593-601.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Am and Eu extraction from acidic media by synergistic mixtures of substituted bis-tetrazolyl pyridines with chlorinated cobalt dicarbollide
AU - Smirnov, I. V.
AU - Chirkov, A. V.
AU - Babain, V. A.
AU - Pokrovskaya, E. Y.
AU - Artamonova, T. A.
PY - 2009/11/5
Y1 - 2009/11/5
N2 - Americium (Am) and europium (Eu) extraction from HN03 and HC103 media by a synergistic mixture of 2,6-bis(l-aryl-lH-tetrazol-5- yl)pyridines (ATP) with chlorinated cobalt dicarbollide (CCD) was studied by using m-nitrobenzotrifluoride, phenyltrifluoromefhyl sulfone, and 1,2-dichloroethane as diluents. We examined the effects of diluents, of the aqueous phase composition and the nature of substituents in the ATP aryl ring on Am/Eu extraction efficiency and selectivity. The Am/Eu separation factor was found to be close to 100 at the optimal ratio of ATPs:CCD∼ 1:1. We also studied the extraction of 85Sr, 137Cs and 133Ba; a PhATP-CCD mixture provided the separation of the Sr/Ba pair with a factor of 35. A high resistance of 2,6-bis-aryltetrazolyl pyridines to 6 M nitric and perchloric acids at 95 °C was demonstrated.
AB - Americium (Am) and europium (Eu) extraction from HN03 and HC103 media by a synergistic mixture of 2,6-bis(l-aryl-lH-tetrazol-5- yl)pyridines (ATP) with chlorinated cobalt dicarbollide (CCD) was studied by using m-nitrobenzotrifluoride, phenyltrifluoromefhyl sulfone, and 1,2-dichloroethane as diluents. We examined the effects of diluents, of the aqueous phase composition and the nature of substituents in the ATP aryl ring on Am/Eu extraction efficiency and selectivity. The Am/Eu separation factor was found to be close to 100 at the optimal ratio of ATPs:CCD∼ 1:1. We also studied the extraction of 85Sr, 137Cs and 133Ba; a PhATP-CCD mixture provided the separation of the Sr/Ba pair with a factor of 35. A high resistance of 2,6-bis-aryltetrazolyl pyridines to 6 M nitric and perchloric acids at 95 °C was demonstrated.
KW - 2,6-bis( 1 -aryl-1 H-tetrazol-5-yl)pyridines
KW - Americium
KW - Europium
KW - Extraction
KW - Hydrolytic stability
KW - Separation
UR - http://www.scopus.com/inward/record.url?scp=70350539142&partnerID=8YFLogxK
U2 - 10.1524/ract.2009.1648
DO - 10.1524/ract.2009.1648
M3 - Article
AN - SCOPUS:70350539142
VL - 97
SP - 593
EP - 601
JO - Radiochimica Acta
JF - Radiochimica Acta
SN - 0033-8230
IS - 10
ER -
ID: 42867948