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ACCELERATED ESTER PRODUCTION UTILIZING TWO-STEP WATER REMOVAL

IP.com Disclosure Number: IPCOM000031190D
Publication Date: 2004-Sep-16

Publishing Venue

The IP.com Prior Art Database

Abstract

An improved method of making an ester by reacting acrylic acid or methacrylic acid with an alcohol wherein the ester has a boiling point higher than that of water includes distilling out at least a portion of the by-product water from a reaction mixture consisting essentially of the reactant acid, reactant alcohol, an ester product, by-product water, a polymerization inhibitor and a catalyst followed by adding a solvent to the reaction mixture which forms an azeotrope with water and azeotropically distilling out by-product water from the reaction mixture.