Method for purification of ethylene glycol

Details Method for purification of ethylene glycol Method for purification of ethylene glycol

C - Chemistry, Metallurgy

07

C

260/641.4

C07C 29/76 (2006.01) C07C 31/20 (2006.01)

Patent

CA 1330350

METHOD FOR PURIFICATION OF ETHYLENE GLYCOL Abstract of the Disclosure The invention discloses a method for purifying ethylene glycol by using an ion exchange resin. The anion exchange resin adsorbs aldehyde impurities from the ethylene glycol. A basic anion exchange resin is prepared in a bisulfite or a hydroxyl form. The ethylene glycol passed through the column under air or nitrogen gas atmospheric conditions. As a result, aldehydes are absorbed as their bisulfite adducts. Subsequently, the ethylene glycol may be treated by carbon adsorption to improve the UV/visible absorbance. A weakly basic resin such as Amberlte? IR-45 is preferred, but other anion exchange resins are also expected to be effective.

547209

Affiliated with

Also associated with

Rating

Method for purification of ethylene glycol does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for purification of ethylene glycol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for purification of ethylene glycol will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1293806