Zeolites types X and

Katranas,T.K.,Triantafyllidis, K.S., Vlessidis, A.G., and Evmiridis, N.P. (2007) Propane reactions over faujasite structure zeolites type-X and USY effect of zeolite silica over alumina ratio, strength of acidity and kind of exchanged metal ion. Catal. Lett., 118,79-85. 

Stamires (35) investigated the effect of various adsorbed phases on the electrical conductivity of Linde synthetic crystalline zeolites type X and Y. He concluded that the potential energy barrier for cationic conduction is decreased by interaction with the adsorbed phases, but he did not investigate the dielectric response of the material. 

The lattice of the faujasite zeolites (types X and Y) is much more open than that of zeolite A. The windows consist of 12-membered oxygen rings which arc unobstructed by cations The free diameter (--7.5 A) is large enough to... 

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