METHOD FOR PRODUCING (METH)ACRYLIC ACID ESTER

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a (meth)acrylic acid ester stably and efficiently over a long period of time by preventing distillation operation trouble in a low boiling point fraction-separating tower in which an esterification solution containing a (meth)acrylic acid ester obtained by reacting (meth)acrylic acid with alcohol in the presence of an acid catalyst is neutralized and washed and then an oil layer obtained by separating the resulting solution into an oil layer and a water layer is sequentially fed into a low boiling point fraction-separating tower and a purifying tower.SOLUTION: The polymer concentration in an introducing liquid in a low boiling point fraction-separating tower is adjusted at 200 ppm or less in 70 percent or more of the operating period of the low boiling point fraction-separating tower.