Process for preparation of high-silica faujasite type zeolite

Details Process for preparation of high-silica faujasite type zeolite Process for preparation of high-silica faujasite type zeolite

1984-06-08

1986-05-06

Meros, Edward J.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

502 79, C01B 3328

Patent

active

045871159

ABSTRACT:
A faujasite type zeolite having a high SiO.sub.2 /Al.sub.2 O.sub.3 ratio is prepared by simultaneously and continuously supplying an aqueous solution of an alkali metal silicate and an aqueous solution of an aluminum-containing compound whereby the alkali metal silicate is continuously reacted with the aluminum-containing compound to prepare a homogeneous phase compound of a granular amorphous aluminosilicate containing aluminum in an amount of 10 to 16% by weight, as Al.sub.2 O.sub.3 and based on the anhydride; and then, crystallizing the granular homogeneous phase amorphous aluminosilicate in an aqueous alkali metal hydroxide solution having a concentration of 4 to 10% by weight.

REFERENCES:
patent: 3130007 (1964-04-01), Breck
patent: 3425800 (1969-02-01), Hirsh
patent: 4248847 (1981-02-01), Derleth et al.
patent: 4376106 (1983-03-01), Miyanohara et al.

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