Cesium and americium extraction from carbonate-alkaline media with O-substituted p-alkylcalix[8]arenes

被引：0
|
作者：
Igor V. Smirnov
Ekaterina S. Stepanova
Natalya M. Ivenskaya
Maria D. Karavan
Salavat R. Zaripov
Sofiya R. Kleshnina
Svetlana E. Solovieva
Igor S. Antipin
机构：
[1] Khlopin Radium Institute,A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center
[2] Ozersk Institute of Technology,undefined
[3] Saint-Petersburg State University,undefined
[4] Kazan (Volga Region) Federal University,undefined
[5] Russian Academy of Sciences,undefined
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2017年 / 314卷
关键词：
Extraction; Cs; Am; Alkaline medium; O-substituted calix[8]arenes;
D O I：
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摘要：
137Cs and 241Am extraction with perchloroethylene solutions of O-substituted p-alkylcalix[8]arenes (alkyl: tert-butyl, iso-nonyl) from carbonate-alkaline media is studied. Dependence of distribution ratios on pH values of the aqueous phase in the range 11–13.9 and on the nature of functional groups in the calixarene platform is confirmed. Composition of cesium and americium solvates with calix[8]arenes is determined. Tert-butylcalix[8]arene with oxybis(ethane-1,2-diyl) bridging group possesses superior efficiency towards cesium in alkaline media. The most efficient extractants for americium are “mixed” iso-nonyl-tert-butylcalix[8]arenes with ethane-1,2-diyl and oxybis(ethane-1,2-diyl) bridging groups.
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页码：1257 / 1265
页数：8
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