Effect of the Structure of Phosphoryl-Containing Podands on the Extraction of Actinides and Lanthanides(III) from Nitric Acid Solutions

被引：0
|
作者：
Turanov, A. N. [1 ]
Karandashev, V. K. [2 ]
Baulin, V. E. [3 ]
Baulin, D. V. [4 ]
Kostikova, G. V. [4 ]
Fedoseev, A. M. [4 ]
机构：
[1] Russian Acad Sci, YuA Ossipyan Inst Solid State Phys, Chernogolovka 142432, Russia
[2] Russian Acad Sci, Inst Problems Microelect Technol & High Pur Mat, Chernogolovka 142432, Russia
[3] Russian Acad Sci, Inst Physiol Act Subst, Chernogolovka 142432, Russia
[4] Russian Acad Sci, AN Frumkin Inst Phys Chem & Electrochem, Moscow 119991, Russia
来源：
RUSSIAN JOURNAL OF GENERAL CHEMISTRY | 2022年 / 92卷 / 11期
关键词：
phosphorylpodands; extraction; uranium(VI); thorium(IV); americium(III); lanthanides(III); BIDENTATE ORGANOPHOSPHORUS COMPOUNDS; RARE-EARTH-ELEMENTS; LIGANDS; SUBSTITUENTS; DEPENDENCE; CAPACITY;
D O I：
10.1134/S1070363222110135
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The extraction of U(VI), Th(IV), Am(III), and lanthanide(III) ions and HNO3 from nitric acid solutions with 1,2-dichloroethane solutions of 3-oxapentane-1,5-diylbis(diphenylphosphine)dioxide and its structural analogues was studied. The stoichiometry of the extractable complexes was determined. The effects of the extractant structure and HNO3 concentration in the aqueous phase on the efficiency of the metal ions extraction into the organic phase were considered. The successive replacement of two methylene groups connecting the ether oxygen atom with Ph2P(O) groups in the podand molecule by o-phenylene groups leads to an increase in the efficiency of Th(IV) Am(III), and Ln(III) extraction from nitric acid solutions, but has little effect on the efficiency of U(VI) extraction.
引用
收藏
页码：2290 / 2296
页数：7
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