Extraction of Lanthanide Nitrates in Multicomponent Aqueous-Organic Two-Phase Systems with D2EHPA

被引：6
作者：
Belova, V. V. [1 ]
Martynova, M. M. [1 ]
Erastov, A. A. [1 ]
机构：
[1] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia
来源：
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2018年 / 63卷 / 12期
基金：
俄罗斯基础研究基金会;
关键词：
lanthanide nitrates; di(2-ethylhexyl) phosphoric acid; multicomponent aqueous-organic biphasic systems; interphase distribution; separation; COUNTER-CURRENT CHROMATOGRAPHY; LIQUID-LIQUID CHROMATOGRAPHY; CENTRIFUGAL PARTITION CHROMATOGRAPHY; PHOSPHORIC-ACID; SAMPLE INJECTION; STEADY-STATE; SEPARATION; MODE; MIXTURE; CELL;
D O I：
10.1134/S0036023618120033
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Lanthanum nitrate distribution in three-component aqueous-organic systems with D2EHPA from acetate or acetic acid-acetate solutions has been studied, it has been shown that variation in sodium acetate concentration or composition of CH3COONa-CH3COOH mixture can affect metal distribution ratios. It has been found that extraction in three-component mixture of 1: 1: 1 composition (aqueous solution Ln(NO3)(3) + CH3COONa + CH3COOH-D2EHPA in hexane-isopropyl alcohol) can provide lanthanide separation, which is dependent on the ratio of sodium acetate and acetic acid in aqueous phase and on D2EHPA concentration in organic phase. Lanthanide-lanthanum separation factors have been calculated for the extraction of lanthanide nitrates from acetic acid-acetate solutions.
引用
收藏
页码：1651 / 1655
页数：5
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