Preparation of type Y zeolites

Details Preparation of type Y zeolites Preparation of type Y zeolites

1983-08-22

1985-09-10

Meros, Edward J.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

502 79, C01B 3328

Patent

active

045405590

ABSTRACT:
Type Y zeolites were adopted as, e.g., catalysts and adsorbents, are facilely prepared by (i) intimately admixing, at essentially ambient temperature, an aqueous solution of a water-soluble aluminum compound with an aqueous solution of sodium silicate as to prepare a reaction mixture solution or sol therefrom, (ii) next heating said reaction mixture solution or sol to a temperature of crystallization, ranging from about 50.degree. to 120.degree. C., by heat exchange within such rapid period of time as to avoid any phase conversion thereof, but whereafter said reaction mixture solution or sol transforms essentially immediately into a gel, and (iii) thence maintaining the resulting gel at such crystallization temperature until Type Y zeolite crystals are crystallized therefrom.

REFERENCES:
patent: 3130007 (1964-04-01), Breck
patent: 4016246 (1977-04-01), Whittam
patent: 4271135 (1981-06-01), Wuest et al.

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