Extraction of nitrates of alkali and alkaline earth metals with crown ether into hydrophilic ionic liquid in the presence of salting out agent

被引：1
|
作者：
Djigailo D.I. [1 ]
Smirnova S.V. [1 ]
Torocheshnikova I.I. [1 ]
Vendilo A.G. [2 ]
Popov K.I. [3 ]
Pletnev I.V. [1 ]
机构：
[1] Department of Analytical Chemistry, Chemical Faculty, Moscow State University, Moscow
[2] Institute of Chemicals and Highly Pure Chemical Substances, Moscow
[3] Moscow State University of Food Production, Moscow
来源：
Moscow University Chemistry Bulletin | 2009年 / 64卷 / 3期
关键词：
Crown Ether; Magnesium Sulfate; Hydrophilic Ionic Liquid; Strontium Sulfate; Strontium Extraction;
D O I：
10.3103/S0027131409030043
中图分类号：
学科分类号：
摘要：
We show that the hydrophilic liquid N-butyl-4-methylpyridinium tetrafluoroborate is suitable for the extraction of metal ions with dicyclohexyl-18-crown-6. We used magnesium sulfate as salting-out agent, resulting in the formation of two immiscible phases in the ionic liquid-water system. The pH profiles of the extraction of alkali and alkaline earth metals have been determined; the influence of the concentration of the salting-out agent on recovery has been investigated. © Allerton Press, Inc., 2009.
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页码：130 / 133
页数：3
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