Effect of the Composition of the Zeolite Framework of Natural Clinoptilolites on the Exchange of Cations Na+ On Ca2+
THEORETICAL AND EXPERIMENTAL CHEMISTRY(2023)
摘要
The effect of the zeolite framework composition on the selectivity and thermodynamic parameters of ion exchange is studied for the exchange reaction of Ca2+ cations on Na-forms of clinoptilolites from nine deposits of Central and Southeast Europe, Northeast Asia, and North America. An increase in the thermodynamic affinity of Na-forms towards Ca(2+ )cations is shown with a decrease in the Si/Al ratio in their zeolite framework.
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关键词
clinoptilolite,zeolite,exchange complex,selectivity,thermodynamic constants
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