Extraction of REE(III), U(VI), and Th(IV) from Nitric Acid Solutions with N-Akyl(aryl)carbamoylmethylphosphine Oxides in the Presence of an Ionic Liquid

被引：1
作者：
Turanov, A. N. [1 ]
Karandashev, V. K. [2 ]
Artyushin, O., I [3 ]
Sharova, E., V [3 ]
Khvostikov, V. A. [2 ]
机构：
[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow Oblast, Russia
[2] Russian Acad Sci, Inst Problems Microelect & Special Pur Mat, Chernogolovka 142432, Moscow Oblast, Russia
[3] Russian Acad Sci, Nesmeyanov Inst Organoelement Cpds, Moscow 119434, Russia
来源：
RADIOCHEMISTRY | 2021年 / 63卷 / 02期
关键词：
extraction; REEs(III); uranium(VI); thorium(IV); carbamoylmethylphosphine oxides; ionic liquids; CARBAMOYLMETHYLPHOSPHINE OXIDES; SOLVENT-EXTRACTION; PHOSPHINE OXIDE; CROWN-ETHERS; AMERICIUM;
D O I：
10.1134/S1066362221020053
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
It was found that the extraction of REE(III), U(VI), and Th(IV) from nitric acid solutions with N-alkyl(aryl)carbamoylmethyl phosphine oxides Ph2P(O)CH2C(O)NHR (R = C9H19, Ph, CH2PH) is strongly enhanced in the presence of an ionic liquid, bis[(trifluoromethyl)sulfonyl]imide of 1-butyl-3-methylimidazolium. The extraction efficiency varies widely, depending on the nature of substituents at the nitrogen atom. It was shown that the system with ionic liquid Ph2P(O)CH2C(O)NHC9H19 substantially exceeds its N,N-dialkylsubstituted analog in the efficiency of REE(III) extraction from HNO3 solutions of moderate concentration.
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收藏
页码：162 / 168
页数：7
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