A STUDY OF THE ION EXCHANGE EFFECT ON THE SORPTION PROPERTIES OF HEULANDITE—CLINOPTILOLITE ZEOLITE
A. M. Spiridonov1, M. D. Sokolova2,1, A. A. Okhlopkova1, V. V. Koryakina2, E. Yu. Shits2, A. G. Argunova2,1, L. A. Nikiforov1
1Ammosov North-Eastern Federal University, Yakutsk, Russia
2Institute of Oil and Gas Problems, Siberian Branch, Russian Academy of Sciences, Yakutsk, Russia
Keywords: zeolite, clinoptilolite, heulandite, ion exchange, sorption capacity, specific surface area, X-ray diffraction study, thermal analysis
Abstract
By cation exchange for clinoptilolite tuff from the Khonguruu deposit (Yakutia) the Mg-, Ca-, Sr-, Ba-modified heulandite-clinoptilolite zeolites are obtained. Based on the data of powder X-ray diffraction and thermal analyses, the properties of these modifications are characterized. Using nitrogen cryosorption, the specific surface areas are determined. Found that the specific surface areas of the cationic modifications obtained increase with the ion charge.
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