Semi-refined mixed dicarboxylic acids

Details Semi-refined mixed dicarboxylic acids Semi-refined mixed dicarboxylic acids

C - Chemistry, Metallurgy

07

C

260/524.4, 260/5

C07C 55/14 (2006.01) C07C 51/42 (2006.01)

Patent

CA 1208239

ABSTRACT OF THE DISCLOSURE A process is disclosed for recovering a semi-re- fined mixture of adipic, glutaric and succinic acids from an aqueous mixture comprising the acids together with catalyst res- idues and impurities. The process comprises the steps of: (a)adding to the aqueous mixture a reducing agent consisting essentially of hypophosphorous acid or sodium hypophosphite, (b)concentrating the resulting aqueous mixture to remove water to produce a substantially dehydrated mixture; and (c)feeding the substantially dehydrated mixture to an evaporator and evapo- rating therefrom a mixture of adipic, glutaric and succinic acids. The mixture of adipic, glutaric and succinic acids may then be condensed as a molten material and fed to a flaker to produce a product in flake form.

429826

Affiliated with

Also associated with

Rating

Semi-refined mixed dicarboxylic 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 Semi-refined mixed dicarboxylic acids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semi-refined mixed dicarboxylic acids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1209847