Process for the preparation of carboxylic acids by carbonylation

Details Process for the preparation of carboxylic acids by carbonylation Process for the preparation of carboxylic acids by carbonylation

1997-04-21

1999-10-26

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5112

Patent

active

059731974

ABSTRACT:
A method for preparing carboxylic acids by carbonylating a reagent, particularly an alcohol, in the presence of a rhodium catalyst. According to the method, the liquid phase reaction is carried out in a first zone in the presence of a rhodium catalyst, and the resulting reaction mixture is partially vaporised in a second zone. The vaporised fraction containing the carboxylic acid is later purified and the unvaporised liquid fraction containing the catalyst is recirculated to the first zone. The method is charactracterised in that said unvaporised fraction is contacted with carbon monoxide in such a way that this compound is not returned to the second zone.

REFERENCES:
patent: 4733006 (1988-03-01), Singleton et al.
patent: 5237097 (1993-08-01), Smith et al.

Affiliated with

Also associated with

Rating

Process for the preparation of carboxylic acids by carbonylation 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 carboxylic acids by carbonylation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of carboxylic acids by carbonylation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-766609