Effect of Ionic Liquid on the Extraction of Lanthanides(III) from Nitric Acid Solutions with Phosphoryl-Containing Podands

IF 0.9 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Radiochemistry Pub Date : 2024-10-06 DOI:10.1134/S1066362224040052

A. N. Turanov, V. K. Karandashev, V. E. Baulin, D. V. Baulin

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Abstract

The effect of the ionic liquid, 1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide, on the extraction of lanthanides(III) from nitric acid solutions with phosphoryl-containing podands (2-(2-diphenylphosphoryl)-4-ethylphenoxy)methyl)diphenylphosphine oxide (1), (2-(2-diphenylphosphoryl)-4-ethylphenoxy)ethyl)diphenylphosphine oxide (2), and 2-[2-(diphenylphosphoryl)-4-ethylphenoxy]-N,N-dioctylacetamide (3) was studied. The stoichiometry of the extracted complexes was determined. The efficiency of extraction of lanthanides(III) with solutions of compounds 1–3 in dichloroethane from nitric acid solutions increases in the order 3 < 2 < 1. It has been established that, when replacing dichloroethane with an ionic liquid as a diluent, the extraction efficiency enhances. The magnitude of this effect decreases in the series of compounds 3 > 2 > 1. In the case of compound 1, the replacement of dichloroethane with an ionic liquid as a solvent is accompanied by a decrease in the extraction of lanthanides(III) at [HNO₃] > 1.5 M.

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离子液体对从含磷荚膜的硝酸溶液中萃取镧系元素（III）的影响

离子液体 1-丁基-3-甲基咪唑鎓双[(三氟甲基)磺酰亚胺]对从硝酸溶液中萃取镧系元素(III)的影响，含磷荚膜(2-(2-二苯基磷酰)-4-乙基苯氧基)甲基)二苯基氧化膦(1)、(2-(2-二苯基磷酰)-4-乙基苯氧基)乙基)二苯基氧化膦 (2) 和 2-[2-(二苯基磷酰)-4-乙基苯氧基]-N,N-二辛基乙酰胺 (3) 进行了研究。确定了萃取络合物的化学计量学。用二氯乙烷中的 1-3 号化合物溶液从硝酸溶液中萃取镧系元素（III）的效率按 3 < 2 < 1 的顺序递增。在化合物 1 的情况下，用离子液体代替二氯乙烷作为溶剂，镧系元素（III）在 [HNO3] > 1.5 M 条件下的萃取率降低。

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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.