Method for production of unsaturated carboxylic acid esters

Details Method for production of unsaturated carboxylic acid esters Method for production of unsaturated carboxylic acid esters

C - Chemistry, Metallurgy

07

C

260/482.6

C07C 67/08 (2006.01) C07C 69/54 (2006.01)

Patent

CA 1290767

ABSTRACT OF THE DISCLOSURE Production of the corresponding ester of an unsaturated carboxylic acid by the reaction of (meth)acrylic acid with an aliphatic alcohol in the presence of a strongly acidic cation-exchange resin as a catalyst is effected efficient and economically by keeping the reaction solution in a boiling state and, at the same time, keeping the catalyst suspended and dispersed in the reaction solution with a stirrer operated at a required motive force falling in the range of 0.005 to 2kW per m3 of the reaction solution, and optionally refluxing the same alcohol into contact with the vapor containing the water formed by the esterification thereby recovering the (meth)acrylic acid being distilled as entrained by the formed water.

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