Process for introduction of silicon atoms instead of aluminum at

Details Process for introduction of silicon atoms instead of aluminum at Process for introduction of silicon atoms instead of aluminum at

1988-06-01

1991-06-11

Straub, Gary P.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

502 85, C01B 3334

Patent

active

050230662

ABSTRACT:
Process for introduction of silicon atoms instead of aluminum atoms in the crystal lattice of a zeolite of the faujasite type with a halosilane at temperatures lower than 150.degree. C., then washing. The resulting zeolites are particularly suitable for the conversion of hydrocarbons, above all for cracking. They are distinguished by their ultrastability and good activity.

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Hermann K. Beyer et al., "Preparation of High-Silica Faujasites by Treatment with Silicon Tetrachloride", J. Chem. Soc., Faraday Trans. 1, 1985, 81, 2889-2901.
P. J. Grobet et al, "Study of the Silicon Tetrachloride Dealumination of NaY by a Combination of N.M.R. and I.R. Methods", Zeolites, Jan. 1986, vol. 6, pp. 47-50.
C. V. McDaniel et al, "New Ultra-Stable Form of Faujasite", Soc. Chem. Ind. (1968), pp. 186-195.
Hermann K. Beyer et al, "A New Method for the Dealumination of Faujasite-Type Zeolites", Catalysis by Zeolites (1980), pp. 203-210.

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