Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By isomerization
Patent
1984-09-19
1993-10-19
Pal, Asok
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By isomerization
C07C 527
Patent
active
052547701
ABSTRACT:
A mixture of aromatic hydrocarbons, comprising xylenes, is isomerized in the presence of ZSM-22 zeolite to produce a product stream wherein the proportion of para-xylene is substantially equal to the equilibrium ratio of the para-isomer. The process is conducted at about 500.degree. F. to about 1100.degree. F., at about 0 to about 3000 psig, optionally in the presence of hydrogen, and also optionally with the catalyst comprising about 0.005% to about 5.0% of a metal, e.g., platinum, palladium or cobalt, based on total catalyst weight.
REFERENCES:
patent: 4139600 (1979-02-01), Rollmann et al.
patent: 4146584 (1979-03-01), Rollmann
patent: 4224141 (1980-09-01), Morrisson et al.
patent: 4229282 (1980-10-01), Peters et al.
patent: 4344868 (1982-08-01), Chang et al.
patent: 4351979 (1982-09-01), Chester et al.
patent: 4358397 (1982-11-01), Chu
patent: 4481177 (1984-11-01), Valyocsik
patent: 4556477 (1985-12-01), Dwyer
patent: 4574043 (1986-03-01), Chester et al.
patent: 4605488 (1986-08-01), Chester et al.
patent: 4717465 (1988-01-01), Chen et al.
patent: 4783555 (1988-11-01), Atkins
patent: 4810357 (1989-03-01), Chester et al.
patent: 4814543 (1989-03-01), Chen et al.
patent: 4902406 (1990-02-01), Valyocsik
patent: 4919788 (1990-04-01), Chen et al.
patent: 5063038 (1991-11-01), Kirker et al.
patent: 5135638 (1992-08-01), Miller
patent: 5137194 (1992-10-01), Rahmim et al.
Calvert R. Bruce
Olson David H.
Valyocsik Ernest W.
Kenehan, Jr. Edward F.
McKillop Alexander J.
Mobil Oil Corp.
Pal Asok
Santini Dennis P.
LandOfFree
Isomerization of aromatic compounds over ZSM-22 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 Isomerization of aromatic compounds over ZSM-22 zeolite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Isomerization of aromatic compounds over ZSM-22 zeolite will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1353423