Ion exchange properties of the sodium phlogopite and biotite

被引：17

作者：

Bortun, AI ^{[1
]}

Bortun, LN ^{[1
]}

Khainakov, SA ^{[1
]}

Clearfield, A ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA

来源：

SOLVENT EXTRACTION AND ION EXCHANGE | 1998年 / 16卷 / 04期

关键词：

D O I：

10.1080/07366299808934569

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The ion exchange behavior of three sodium micas (phlogopite, Ward's Sci.; phlogopite, Suzorite Inc., biotite, Ward's Sci.) towards Li+, K+, Rb+, Cs+, Mg2+, Ca2+, Sr2+, Ba2+, Pb2+, Hg2+, Co-2+,Co- Cu2+, Cd2+ and Zn2+ ions has been studied. The ion exchange isotherms of alkali, alkaline earth and some other divalent cations were determined and concentration equilibrium constants as a function of metal loading and temperature were analyzed. Sotlium micas exhibit high affinity for heavy alkali metals with the selectivity order Rb+ > Cs+ > K+. By studying the cesium uptake in the presence of NaNO3, CaCl2, NaOH, NaOH+KOH, HNO3 electrolytes (in the range of 0.01-6 (M) under bar) it was found that sodium micas could remove cesium efficiently in neutral and alkaline media, which make them promising for certain types of nuclear waste treatment.

引用

页码：1067 / 1090

页数：24

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