METHOD FOR PRODUCING (METH)ACRYLIC ESTER

摘要

PROBLEM TO BE SOLVED: To provide a method for producing (meth)acrylic ester through an esterification step where the (meth)acrylic ester is produced by esterification reaction between (meth)acrylic acid and a 1-4C aliphatic alcohol in the presence of an acid catalyst and a separation/purification step where the (meth)acrylic ester is separated and purified from the resultant (meth)acrylic ester-containing mixture, involving an acid separation column, a low-boiling fraction separation column and a rectifier; wherein a polymerization inhibitor contained in the bottoms of the rectifier is effectively reused and the remaining (meth)acrylic ester in the bottoms is recovered efficiently. SOLUTION: This method for producing (meth)acrylic ester comprises circulating the bottoms from the rectifier to the esterification step and/or separation/ purification step described above.