Process for the production of zeolites in the form of binderless

Details Process for the production of zeolites in the form of binderless Process for the production of zeolites in the form of binderless

1976-08-02

1978-09-12

Meros, Edward J.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

252455Z, C01B 3328

Patent

active

041138430

ABSTRACT:
A process for the production of zeolites in the form of binderless spherical granules from aqueous solutions of silicate and aluminate of alkali metals having a concentration of 100-200 g/l based on SiO.sub.2 and 50-100 g/l based on Al.sub.2 O.sub.3, respectively, which are mixed in such a proportion as to obtain a molar ratio SiO.sub.2 :Al.sub.2 O.sub.3 of 4-10:1, and the resulting sol is introduced, in the form of separate flows, into an organic liquid immiscible with the sol, wherein the flows of sol are broken into spherical drops which spontaneously get changed in the medium of said organic liquid into spherical granules of gel which are separated from the organic liquid, treated with solutions of ammonium salt and aluminium salt until the gel is saturated with the respective cations, washed with water and subjected to a heat treatment at 80.degree.-800.degree. C with subsequent crystallization of the resulting amorphous aluminosilicate in a solution of sodium aluminate to obtain spherical granules of zeolite of the type A or faujasite, which are then washed and dried.

REFERENCES:
patent: 2813836 (1957-11-01), Lebeis
patent: 3193511 (1965-07-01), Cramer et al.
patent: 3348911 (1967-10-01), Michalko
patent: 3356451 (1967-12-01), Michalko
patent: 3359068 (1967-12-01), Michalko
patent: 3386802 (1968-06-01), Michalko
patent: 3459501 (1969-08-01), Plank et al.

Affiliated with

Also associated with

Rating

Process for the production of zeolites in the form of binderless does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the production of zeolites in the form of binderless, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of zeolites in the form of binderless will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2384518