The Composition, Structure, and Helium Permeability of Glass-Crystalline Shells of Cenospheres


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Abstract

The results of studying the relationship of the composition, structure, and the diffusive properties of glass-crystalline shells of cenospheres relative to helium are presented in a wide range of variations of macrocomponent and phase compositions, wt %: 58–68 of SiO2, 21–37 of Al2O3, 30–93 of glass phase, 1–50 of mullite, 0–15 of cristobalite, 1–7 of quartz, and 0–2 of anorthite. It is found that the helium permeability coefficients of the cenosphere glass phase exceed the similar values of silicate glass. The high level of permeability of cenosphere glass-crystalline shells ensures significant potential for their application as membrane elements of the diffusion–sorption technology of the selective recovery of helium from gas mixtures.

About the authors

E. V. Fomenko

Institute of Chemistry and Chemical Technology, Federal Research Center “Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences,” Siberian Branch, Russian Academy of Sciences

Author for correspondence.
Email: fom@icct.ru
Russian Federation, Krasnoyarsk, 660049

N. N. Anshits

Institute of Chemistry and Chemical Technology, Federal Research Center “Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences,” Siberian Branch, Russian Academy of Sciences

Email: anshits@icct.ru
Russian Federation, Krasnoyarsk, 660049

A. G. Anshits

Institute of Chemistry and Chemical Technology, Federal Research Center “Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences,” Siberian Branch, Russian Academy of Sciences; Siberian Federal University

Author for correspondence.
Email: anshits@icct.ru
Russian Federation, Krasnoyarsk, 660049; Krasnoyarsk, 660041

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