The mobility of cations in synthetic zeolites with the faujasite framework — III: Self-diffusion of cations into X and Y zeolites from non-aqueous solutions

Abstract

Cation self-diffusion parameters in non-aqueous solvents have been measured in zeolite X and in two Y zeolites having Si Al ratios of 1·86 and 2·60 respectively. The effect of variation in solvent media on the diffusion of Ca 2+, Sr 2+ and Ba 2+ ions in methyl and ethyl alcohols is commented on. Conclusions are shown as to the nature of the rate-controlling step and comparisons made to diffusion in aqueous solution.