Selective extraction of cesium ion with calix[4]arene crown ether through thin sheet supported liquid membranes

被引：29
|
作者：
Kim, JK [1 ]
Kim, JS
Shul, YG
Lee, KW
Oh, WZ
机构：
[1] Konyang Univ, Dept Chem Engn, Nonsan 320711, South Korea
[2] Konyang Univ, Dept Chem, Nonsan 320711, South Korea
[3] Yonsei Univ, Dept Chem Engn, Seoul 120749, South Korea
[4] Korea Atom Energy Res Inst, Taejon 305600, South Korea
来源：
JOURNAL OF MEMBRANE SCIENCE | 2001年 / 187卷 / 1-2期
关键词：
supported liquid membrane; calix[4]arene crown ether; cesium nitrate; selectivity;
D O I：
10.1016/S0376-7388(00)00592-5
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
1,3-Dipropyloxycalix[4]arene crown ether (CCE1) and 1,3-dipropyloxycalix[4]arene dibenzo crown ether (CCE2) were successfully synthesized in a fixed 1,3-alternate conformation with good yields by the reaction of corresponding 1,3-dipropyloxycalix[4]arenes with pentaethylene glycol ditosylate and dibenzodimesylate, respectively in the presence of cesium carbonate as a base. Solvent extraction of cesium picrates and cesium nitrate from aqueous solutions into chloroform by CCE1 and CCE2 were investigated. D-M value of calix[4]arene crown ether was 30-240 times of that of general crown ether and D-M value of CCE2 was almost eight times of that of CCE1. Through permeation experiments using thin sheet supported liquid membranes (SLM), the effect of operating variables on permeation coefficients were obtained. Permeation coefficient of cesium ion in case of using CCE1 as extractant was higher than that of using CCE2. Published by Elsevier Science B.V.
引用
收藏
页码：3 / 11
页数：9
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