Selectivity of ion exchangers in extracting cesium and rubidium from alkaline solutions

被引：5
|
作者：
Shelkovnikova, L. A. [1 ]
Kargov, S. I. [1 ]
Gavlina, O. T. [1 ]
Ivanov, V. A. [1 ]
Al'tshuler, G. N. [2 ]
机构：
[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia
[2] Russian Acad Sci, Inst Coal Chem & Chem Mat Engn, Siberian Branch, Kemerovo 650000, Russia
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2013年 / 87卷 / 01期
关键词：
ion exchange selectivity; phenolic resins; calixarenes; FORMALDEHYDE RESINS; LIQUID-MEMBRANE; METAL-CATIONS; TRANSPORT; ENERGIES; REMOVAL; WATER; NA+;
D O I：
10.1134/S0036024413010251
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We compare the ion exchange selectivity of phenol-type sorbents based on phenol formaldehyde resins, products of condensation of diatomic phenols with formaldehyde, and crosslinked polymer based on C-phenyl[4]resorcinarene resin, for cesium and rubidium ions. It is shown that phenol formaldehyde sorbents are the ones most selective. The interaction of alkali metal cations with the anion of calix[4]arene is investigated via quantum-chemical modeling. It is shown that the selectivity toward cesium and rubidium ions in ion exchangers of the phenolic type is not due to specific interactions of ions with phenolic groups.
引用
收藏
页码：125 / 128
页数：4
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