Influence of the Nature of Diluent on the Extractability of N,N,N',N'-Tetrabutyldiglycolamide for Eu(III), Am(III), and Cm(III)

IF 0.9 Q4 CHEMISTRY, INORGANIC & NUCLEAR Radiochemistry Pub Date : 2023-12-11 DOI:10.1134/s106636222305003x

V. E. Sharov, G. V. Kostikova

引用次数: 0

Abstract

The effect of HNO₃ concentration on the extraction of Eu(III), Am(III), and Cm(III) with N,N,N',N'-tetrabutyldiglycolamide was studied in 5 different diluents: nitrobenzene, toluene, chloroform, 1,2-dichloroethane, and 1,1,2,2-tetrachloroethane. The distribution coefficients of these metals as a function of the nature of the diluent in the following series of compounds was established: nitrobenzene > m-trifluoromethylnitrobenzene > mixture of n-dodecane with decanol-1 (volume ratio 90 : 10) > carbon tetrachloride > 1,2-dichloroethane > benzene > 1,1,2,2-tetrachloroethane > toluene > chloroform. The conditions for the partioning Eu(III)/Am(III) and Am(III)/Cm(III) pairs were found. An explanation was proposed for the observed increase in the separation factors of the Am(III)/Cm(III) pair with increasing concentration of nitric acid in the equilibrium aqueous phase.

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稀释剂的性质对 N,N,N',N'-四丁基二乙二醇酰胺提取 Eu(III)、Am(III) 和 Cm(III) 的能力的影响

摘要研究了硝基苯、甲苯、氯仿、1,2-二氯乙烷和1,1,2,2-四氯乙烷等5种不同稀释剂中HNO3浓度对N,N,N',N'-四丁基二乙二醇酰胺萃取Eu(III)、Am(III)和Cm(III)的影响。确定了这些金属在以下系列化合物中的分布系数与稀释剂性质的函数关系：硝基苯；间三氟甲基硝基苯；正十二烷与癸醇-1 的混合物（体积比为 90:10）；四氯化碳；1,2-二氯乙烷；苯；1,1,2,2-四氯乙烷；甲苯；氯仿。找到了使 Eu(III)/Am(III) 和 Am(III)/Cm(III) 成对的条件。对所观察到的 Am(III)/Cm(III) 对的分离因子随平衡水相中硝酸浓度的增加而增加的现象提出了解释。

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来源期刊

Radiochemistry CHEMISTRY, INORGANIC & NUCLEAR-

CiteScore

1.30

自引率

33.30%

发文量

期刊介绍： Radiochemistry is a journal that covers the theoretical and applied aspects of radiochemistry, including basic nuclear physical properties of radionuclides; chemistry of radioactive elements and their compounds; the occurrence and behavior of natural and artificial radionuclides in the environment; nuclear fuel cycle; radiochemical analysis methods and devices; production and isolation of radionuclides, synthesis of labeled compounds, new applications of radioactive tracers; radiochemical aspects of nuclear medicine; radiation chemistry and after-effects of nuclear transformations.

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