Process for the preparation of doped pentasil-type zeolite...

Details Process for the preparation of doped pentasil-type zeolite... Process for the preparation of doped pentasil-type zeolite...

2005-11-15

2005-11-15

Johnson, Christina (Department: 1725)

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

And additional al or si containing component

C502S064000, C502S071000, C502S077000, C423S709000, C423S710000, C423S711000

Reexamination Certificate

active

06964934

ABSTRACT:
The present invention relates to a process for the preparation of doped pentasil-type zeolite, which process comprises the steps of:a) preparing an aqueous precursor mixture from a silicon source, an aluminium source, and doped non-zeolitic seeds; andb) thermally treating the precursor mixture to form a doped pentasil-type zeolite.The term “non-zeolitic seeds” includes seeds made from materials selected from the group consisting of (i) X-ray amorphous materials, (ii) milled crystalline materials, such as milled zeolites, that have a relative crystallinity of not more than 75%, and (iii) crystalline materials other than zeolites, such as clays (e,g, bentonite and kaolin) and (low) crystalline aluminas.

REFERENCES:
patent: 3976598 (1976-08-01), Daviditz
patent: 4081514 (1978-03-01), Sand et al.
patent: 4166099 (1979-08-01), McDaniel et al.
patent: 4228137 (1980-10-01), Taylor et al.
patent: 4234457 (1980-11-01), Alafandi et al.
patent: 4237031 (1980-12-01), Alifandi et al.
patent: 4606900 (1986-08-01), Kacirek et al.
patent: 5232675 (1993-08-01), Shu et al.
patent: 6667023 (2003-12-01), Ludvig
patent: 6887457 (2005-05-01), O'Connor et al.
patent: 2004/0091420 (2004-05-01), Rao
patent: 2004/0110629 (2004-06-01), Stamires et al.
patent: 2004/0121900 (2004-06-01), Brady et al.
patent: 0150256 (1985-08-01), None
patent: 0550917 (1993-07-01), None
patent: 01/12551 (2001-02-01), None
patent: 01/12552 (2001-02-01), None
patent: 01/12554 (2001-02-01), None
Proceedings of the 7th International Conference of Zeolites, Kasahara, et al ‘Studies of Surface Science and Catalysis’, 1986, pp. 185-192.
Derwent Abstract of SU1686794, dated Jan. 15, 1994.
Chemical Abstract of “Synthesis of Pentasil-Type Zeolite With Introduction of Amorphous Seeds” (1992), (2), 13-14.
International Search Report of Patent Application Serial No. PCT/EP03/09187, no date.

Affiliated with

Also associated with

Rating

Process for the preparation of doped pentasil-type 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 Process for the preparation of doped pentasil-type zeolite..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of doped pentasil-type zeolite... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3503915