Extraction of Actinides and Lanthanides from Nitric Acid Solutions with Phosphorylated Pyrazines

IF 0.9 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Radiochemistry Pub Date : 2024-02-19 DOI:10.1134/S106636222306005X

A. N. Turanov, V. K. Karandashev, O. I. Artyushin, E. V. Smirnova, G. V. Kostikova, A. M. Fedoseev, V. K. Brel

引用次数: 0

Abstract

The extraction of U(VI), Th(IV), Am(III), and lanthanides(III) from nitric acid solutions with solutions of phosphorylated pyrazines in organic solvents was studied. The stoichiometry of the extracted complexes was determined, and the influence of the structure of the extractant and an HNO₃ concentration in the aqueous phase on the efficiency of the extraction of metal ions into the organic phase was considered. It was established that among the studied compounds, bis(diphenylphosphine)quinoxaline dioxide has the highest extraction ability with respect to actinides and lanthanides in nitric acid media.

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用磷化吡嗪从硝酸溶液中萃取锕系元素和镧系元素

摘要研究了用有机溶剂中的磷酸化吡嗪溶液从硝酸溶液中萃取 U(VI)、Th(IV)、Am(III)和镧系元素(III)的问题。确定了萃取络合物的化学计量学，并考虑了萃取剂的结构和水相中 HNO3 的浓度对将金属离子萃取到有机相的效率的影响。结果表明，在所研究的化合物中，双（二苯基膦）二氧化喹喔啉在硝酸介质中对锕系元素和镧系元素的萃取能力最强。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.