Preparation of zeolite

Details Preparation of zeolite Preparation of zeolite

1977-12-19

1979-08-14

Meros, Edward J.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

423329, C01B 3328

Patent

active

041645510

ABSTRACT:
Crystalline aluminosilicate Type Y zeolite is prepared by reacting silica, alumina, sodium hydroxide and water to produce a slurry of Type Y zeolite and excess silicate containing mother liquor. Silicate is recovered from the mother liquor as precipitated silica/alumina hydrogel by the addition of an acid aluminum salt such as aluminum sulfate. The precipitated silica/alumina hydrogel is used in the zeolite reaction step as a source of silica and alumina.

REFERENCES:
patent: 3359068 (1967-12-01), Michalko
patent: 3459501 (1969-08-01), Plank et al.
patent: 3574538 (1971-04-01), McDaniel et al.
patent: 3639099 (1972-02-01), Elliott et al.
patent: 3898319 (1975-08-01), Weber

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