Alkylation of aromatic compounds to alkylates enriched in the li

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

568 27, 568 29, 568 33, 568 34, 568 36, 568 37, 568 53, 568 57, 568 58, 568 68, 568707, 585452, 585453, C07C 4100

Patent

active

050048414

ABSTRACT:
Aromatic compounds, such as benzene or biphenyl, are alkylated with an alkylating agent having from one to eight carbons atoms, such as propylene, in the presence of an acidic mordenite zeolite catalyst under conditions sufficient to produce a mixture of substituted aromatic compounds enriched in the linear alkylated isomers, such as p-diisopropylbenzene or p,p'-di(isopropyl)biphenyl, respectively. The novel acidic mordenite catalyst is characterized by its silica/alumina molar ratio, its porosity, and a Symmetry Index. The p,p'-disubstituted isomers of aromatic compounds are useful as monomers in the preparation of thermotropic, liquid crystal polymers.

REFERENCES:
patent: 3251897 (1966-05-01), Wise
patent: 3551510 (1970-12-01), Pollitzer et al.
patent: 3597493 (1971-08-01), Frilette et al.
patent: 3716597 (1973-02-01), Mitsche et al.
patent: 3849340 (1974-11-01), Pollitzer
patent: 4085156 (1978-04-01), Frilette et al.
patent: 4283573 (1981-08-01), Young
patent: 4301317 (1981-11-01), Young
patent: 4323481 (1982-04-01), Kaduk
patent: 4420418 (1983-12-01), Chu
patent: 4731497 (1988-03-01), Grey
patent: 4891448 (1990-01-01), Garces et al.
Derwent 84-026354/05 (1984).
K. A. Becker, H. G. Karge, and W.-D. Streubel, Journal of Catalysis, 28, 403-413 (1973).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Alkylation of aromatic compounds to alkylates enriched in the li does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Alkylation of aromatic compounds to alkylates enriched in the li, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alkylation of aromatic compounds to alkylates enriched in the li will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-327672

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.