Three-phase extraction study in the Cyanex923-n-heptane/HNO3 system

被引：7
|
作者：
Jia, Q
Shang, QK
Li, DQ [1 ]
Niu, CJ
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China
[2] Jilin Univ, Coll Chem, Changchun 130023, Peoples R China
来源：
SOLVENT EXTRACTION AND ION EXCHANGE | 2003年 / 21卷 / 03期
关键词：
extraction; three-phase; Cyanex923; HNO3;
D O I：
10.1081/SEI-120020219
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The present paper reports a study of the extraction of HNO3 with Cyancx923 (C923)-n-heptane. A third phase appears at different aqueous HNO3 concentrations for various initial C923 concentrations. Data analysis indicates that almost all of HNO3 and H2O are extracted into the middle phase. More HNO3 and water at a fixed ratio are solubilized in the reverse micelles or microemulsion in the third phase, which leads to a sharp increase of their concentration. The effect of temperature on the phase behavior of the three-phase system has also been investigated.
引用
收藏
页码：413 / 421
页数：9
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