LIQUID-LIQUID-EXTRACTION OF ALKALINE-EARTH AND ALKALI-METAL IONS WITH ACYLPYRAZOLONES

被引：33
|
作者：
BUKOWSKY, H [1 ]
UHLEMANN, E [1 ]
GLOE, K [1 ]
MUHL, P [1 ]
机构：
[1] ZENT INST FESTKORPERPHYS & WERKSTOFFORSCH,O-8027 DRESDEN,GERMANY
来源：
ANALYTICA CHIMICA ACTA | 1992年 / 257卷 / 01期
关键词：
ALKALI METALS; ALKALINE EARTH METALS; EXTRACTION; LITHIUM CHLORIDE;
D O I：
10.1016/0003-2670(92)80156-2
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The extraction of calcium, magnesium and lithium with 1-phenyl-3-methyl-4-stearoylpyrazol-5-one and with 1-phenyl-3-methyl-4-lauroylpyrazol-5-one was studied and separation factors were determined. A good separation of alkaline earth metal ions from lithium chloride can be achieved. 1-Phenyl-3-methyl-4-benzoylpyrazol-5-one in the presence of trioctylphosphine oxide is also suitable as an extractant for lithium whereas other alkali metals are extracted to only a minor extent. The distribution constant of this ligand was obtained for the investigated system. From the extraction data, stability constants of the formed complexes were determined.
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页码：105 / 108
页数：4
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