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Properties of mechanically activated natural clinoptilolite and chabazite

Published online by Cambridge University Press:  09 July 2018

V. A. Nikashina*
Affiliation:
Vernadsky Institute of Geochemistry and Analytical Chemistry of Russian Academy of Sciences, 119991 Moscow, Kosygin str. 19, Russia
A. N. Streletsky
Affiliation:
Semenov Institute of Chemical Physics of Russian Academy of Sciences, 119991 Moscow, Kosygin str. 4, Russia
I. V. Kolbanev
Affiliation:
Semenov Institute of Chemical Physics of Russian Academy of Sciences, 119991 Moscow, Kosygin str. 4, Russia
I. N. Meshkova
Affiliation:
Semenov Institute of Chemical Physics of Russian Academy of Sciences, 119991 Moscow, Kosygin str. 4, Russia
V. G. Grinev
Affiliation:
Semenov Institute of Chemical Physics of Russian Academy of Sciences, 119991 Moscow, Kosygin str. 4, Russia
I. B. Serova
Affiliation:
Vernadsky Institute of Geochemistry and Analytical Chemistry of Russian Academy of Sciences, 119991 Moscow, Kosygin str. 19, Russia
T. S. Yusupov
Affiliation:
Joint Institute of Geology, Geophysics, and Mineralogy, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Pr. Koptyug 3, Russia
L. G. Shumskaya
Affiliation:
Joint Institute of Geology, Geophysics, and Mineralogy, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Pr. Koptyug 3, Russia
*

Abstract

The effect of mechanical activation on the ion-exchange selectivity of natural zeolites from Russia, namely clinoptilolite-bearing tuffs and chabazites, was studied. The structural modifications and thermal properties were investigated, and the specific surface area and porosity of mechanically activated zeolites were determined. At activation doses of up to 1.0 kJ g–1 the main processes are the breakdown of the zeolite particles and pore structure changes. At greater activation doses amorphization takes place. It was shown that during the initial stage of activation in most cases the clinoptilolite selectivity for Sr2+ increased slightly and then decreased; the selectivity for Cu2+ increased 100 times; and the selectivity of chabazite-1 for Sr2+ increased 300 times.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2011

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References

Boldyrev, V.V. (1988) Mechanical methods for activation of inorganic substances. D.I. Mendeleev VChO Journal, 3, 374383 (in Russian).Google Scholar
Brunauer, S., Emmett, P.H. & Teller, V.E. (1938) Adsorption of gases in multimolecular layers. Journal of the American Chemical Society, 60, 309314.Google Scholar
Barrett, E.P., Joyner, L.G. & Halenda, P.P. (1951) The determination of pore volume and area distributions in porous substances. I. Computations from nitrogen isotherms. Journal of the American Chemical Society, 73, 373380.Google Scholar
Charlo, A. (1965) Methods of Analytical Chemistry. Chemistry, Moscow, 546 pp. (in Russian).Google Scholar
Christidis, G.E., Dellisanti, F., Valdre, G. & Makri, P. (2005) Structural modifications of smectites mechanically deformed under controlled conditions. Clay Minerals, 40, 511522.CrossRefGoogle Scholar
Gorelik, S.S., Skakov, Yu.A. & Rastorguev, (1994); X-ray and Electron-optical Analysis. Moscow, MISIC, 330 pp. (in Russian).Google Scholar
Kosanovic, C., Bronic, J., Subotic, B., Smit, I., Stubicar, M., Tonejc, A. & Yamamoto, T. (1993) Mechanochemistry of zeolites: Part 1. Amorphization of zeolites A and X and synthetic mordenite by ball milling. Zeolites, 13, 261268.Google Scholar
Kosanovic, C., Bronic, J., Cizmek, A., Subotic, B., Smit, I., Stubicar, M. & Tonejc, A. (1995a) Mechanochemistry of zeolites: Part 2. Change in particulate properties of zeolites during ball milling. Zeolites, 15, 247252.Google Scholar
Kosanovic, C., Cizmek, A., Subotic, B., Smit, I., Stubicar, M. & Tonejc, A. (1995b) Mechanochemistry of zeolites: Part 4. Influence of cations on the rate of amorphization of zeolite A by ball milling. Zeolites, 15, 632636.Google Scholar
Nikashina, V.A., Galkina, N.K., Komarova, I.V., Anfilov, B.G. & Argin, M.A. (1995) Evaluation of clinoptilolite-rich tuffs as ion-exchangers. Pp. 289297 in: Natural Zeolites ‘93: Occurence, Properties, Use (Ming, D.W. and Mumpton, F.A., editors). International Committee on Natural Zeolites, Brockport, New York, USA.Google Scholar
Shumskaya, L.G., Yusupov, T.S. & Kirillova, E.A. (1998) Mechanochemical modification of zeolites by phosphate ammonium. Chemistry for Interests of Stable Development, 6, 235239 (in Russian).Google Scholar
Streletskii, A.N. (1993) Measurements and calculation of main parameters of powder mechanical treatment in different mills. Pp. 5158 in: Proceedings of the 2nd International Conference on Structural Applications of Mechanical Alloying (de Barbadillo, J.J., Froes, F.H. & Swartz, R., editors), Vancouver, Canada.Google Scholar
Yusupov, T.S., Nikashina, V.A. & Shumskaya, L.G. (2007) Directional changes in ion-exchange properties of chabazite during machining in a mill. Pp. 201202 in: Materials 6 Congress Dressers CIS. Moscow, 1 (in Russian).Google Scholar
Zielinski, P.A., Van Neste, A., Akolekar, D.B. & Kaliaguine, S. (1995) Effect of high-energy ball milling on the structural stability, surface and catalytic properties of small-, medium- and large- pore zeolites. Microporoiis Materials, 5, 123133.Google Scholar