Preparation of aromatic acids

Details Preparation of aromatic acids Preparation of aromatic acids

1999-05-18

2000-09-05

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

C07C 5116

Patent

active

061145742

ABSTRACT:
A process for converting alkyl-substituted aromatic hydrocarbons, such as p-xylene or 2,6-dimethyl naphthalene to their corresponding dicarboxylic acids is disclosed, said process comprising contacting the alkyl-substituted aromatic hydrocarbon with a gaseous mixture containing oxygen, NOx, where x is 1 or 2, and an inert gas, and heating the resulting mixture at a temperature from 90 .degree. C. to 250 .degree. C. and at a pressure of from 300 psi to 2500 psi for a period of time sufficient to convert the alkyl substitutents on the aromatic hydrocarbons to carboxyl groups.

REFERENCES:
patent: 2766281 (1956-10-01), Zienty et al.
patent: 3219691 (1965-11-01), McNelis
patent: 3235587 (1966-02-01), Boffa et al.
patent: 3532746 (1970-10-01), Ember
patent: 3626001 (1971-12-01), Keith
patent: 3686293 (1972-08-01), Gualdi et al.
patent: 4145560 (1979-03-01), Alagy et al.
patent: 4605763 (1986-08-01), Kiefer et al.
patent: 5557009 (1996-09-01), Izumisawa et al.
Panov, et al, Applied Catalysis A: General, vol. 82, pp. 31-36 (1992).

Affiliated with

Also associated with

Rating

Preparation of aromatic acids does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of aromatic acids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of aromatic acids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2213942