Stable, catalytically active and coke selective zeolite

Details Stable, catalytically active and coke selective zeolite Stable, catalytically active and coke selective zeolite

1974-04-24

1976-05-18

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

252455Z, 423328, B01J 2912, C10G 1102

Patent

active

039576230

ABSTRACT:
A stable rare earth exchanged zeolite having high catalytic activity and improved coke selectivity is prepared by a series of exchange steps whereby the rare earth is introduced into the zeolite in a multi-step e.g., two step manner. The method comprises exchanging a sodium zeolite to less than 4.0 weight percent Na.sub.2 O, exchanging with rare earth to give an initial rare earth oxide content of 0.3 to 5 weight percent, calcining, and further rare earth exchanging the zeolite to give a final rare earth content of 1.0 to 10 weight percent.

REFERENCES:
patent: 3393147 (1968-07-01), Dwyer et al.
patent: 3402996 (1968-09-01), Maher et al.
patent: 3462377 (1969-08-01), Plank et al.
patent: 3533939 (1970-10-01), Coonradt
patent: 3595611 (1971-07-01), McDaniel et al.
patent: 3676368 (1972-07-01), Scherzer
patent: 3816342 (1974-06-01), Plank et al.
patent: 3823092 (1974-07-01), Gladrow
patent: 3835032 (1974-09-01), Dolbear et al.

Affiliated with

Also associated with

Rating

Stable, catalytically active and coke selective zeolite does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stable, catalytically active and coke selective zeolite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stable, catalytically active and coke selective zeolite will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2234023