Catalyst for metathetic reactions of olefins

Details Catalyst for metathetic reactions of olefins Catalyst for metathetic reactions of olefins

1992-07-16

1994-12-13

Sneed, Helen M. S.

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

Catalyst or precursor therefor

Halogen or compound containing same

502228, 502251, 502254, B01J 27138, B01J 27135, B01J 2108

Patent

active

053729820

ABSTRACT:
The present invention concerns a heterogeneous catalyst particularly suited to the metathetic reactions of olefins in liquid or gas phase. Such a catalyst generally includes catalytically active species of tungsten on an inorganic support. The catalyst in accordance with the invention is prepared by vaporizing a precursor of tungsten, such as tungsten oxychloride or hexachloride and then routing the vapor of the tungsten-containing reagent into a reaction space, where the vapor is brought to interaction with the support material at approximately 160.degree. to 500.degree. C. The vapor pressure of the tungsten-containing reagent is kept sufficiently high, and the duration of interaction with the support sufficiently long, to keep the amount of the reagent at least equal to the number of available bonding sites of the support, whereby the bonding of the tungsten-containing reagent to the support surface is determined by the surface properties of the support. The catalyst can be posttreated after its preparation to modify its catalytic activity. The specific activity of the catalytic metal species of the catalyst according to the invention is high.

REFERENCES:
patent: 3413367 (1968-11-01), Kopsch
patent: 4194992 (1980-03-01), Corbellini et al.
patent: 4203866 (1980-05-01), Corbellini et al.
patent: 4217245 (1980-08-01), Corbellini et al.
patent: 4446289 (1984-05-01), Carbonaro et al.
patent: 5071812 (1991-12-01), Kelsey

Affiliated with

Also associated with

Rating

Catalyst for metathetic reactions of olefins does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catalyst for metathetic reactions of olefins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalyst for metathetic reactions of olefins will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1193370