Extraction of Rare-Earth Elements from Hydrochloric Acid by Carbamoyl Methyl Phosphine Oxides in the Presence of Ionic Liquids

被引：10
|
作者：
Turanov, A. N. [1 ]
Karandashev, V. K. [2 ,3 ]
Yarkevich, A. N. [4 ]
机构：
[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow Oblast, Russia
[2] Russian Acad Sci, Inst Problems Microelect & High Pur Cpds Technol, Chernogolovka 142432, Moscow Oblast, Russia
[3] MISiS Natl Res Technol Univ, Moscow 119991, Russia
[4] Russian Acad Sci, Inst Physiol Act Cpds, Chernogolovka 142432, Moscow Oblast, Russia
来源：
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2018年 / 63卷 / 03期
关键词：
ORGANOPHOSPHORUS COMPOUNDS; NITRIC-ACID; AMERICIUM; LANTHANIDES(III); SUBSTITUENTS; DEPENDENCE; SEPARATION; SOLVENT;
D O I：
10.1134/S0036023618030221
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The distribution of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y between aqueous HCl solutions and solutions of carbamoyl methyl phosphine oxides (CMPOs) has been studied in the presence of the 1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide ionic liquid (IL). The efficiency and selectivity of REE(III) extraction by CMPO solutions increase considerably in the presence of the ionic liquid in the organic phase. The stoichiometry of the extractable complexes has been determined; the effects of the IL cation, organic solvent, CMPO structure, and aqueous HCl concentration on the efficiency of REE(III) recovery into the organic phase has been considered.
引用
收藏
页码：406 / 413
页数：8
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