Hydrolysis of alkyl dicarboxylates

Details Hydrolysis of alkyl dicarboxylates Hydrolysis of alkyl dicarboxylates

1993-05-20

1994-05-17

Prescott, Arthur C.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5142

Patent

active

053129814

ABSTRACT:
Dicarboxylic acids, e.g., adipic acid, are prepared by reactively distilling and hydrolyzing admixture of a C.sub.1 -C.sub.4 alkyl aliphatic dicarboxylate and water, e.g., dimethyl adipate/water admixture, in liquid phase, in a distillation column, the lower end of which distillation column being charged with a gel of a crosslinked styrene/divinylbenzene resin bearing sulfonic acid substituents, the amount by weight of divinylbenzene comprising such resin ranging from 1% to 12% based on the total weight thereof and such resin having an exchange capacity of from 3 to 6.5 milliequivalents H.sup.+ /gram of dry resin, and including introducing the dicarboxylate/water admixture into the middle region of the column, withdrawing dicarboxylic acid from the base thereof and overhead distilling the alcohol of hydrolysis.

REFERENCES:
patent: 2719166 (1955-09-01), Robertson et al.
patent: 4754064 (1988-06-01), Lillwitz
patent: 4965201 (1990-10-01), Casey et al.
patent: 5143834 (1992-09-01), Glassner et al.
patent: 5168055 (1992-12-01), Datta et al.

Affiliated with

Also associated with

Rating

Hydrolysis of alkyl dicarboxylates does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-878369