METHOD FOR ESTERIFYING (METH) ACRYLIC ACID WITH AN ALKANOL.

摘要

IN A PROCESS FOR ESTERIFYING (METH) ACRYLIC ACID WITH AN ALKANOL IN THE PRESENCE OF AN ESTERIFICATION CATALYST, IN WHICH UNCONVERTED STARTING COMPOUNDS AND (METH) ACRYLIC ESTER TO BE FORMED ARE SEPARATED OFF BY DISTILLATION AND AN OXYESTER-CONTAINING BOTTOM PRODUCT IS FORMED, THE BOTTOM PRODUCT IS FIRST SEPARATED OFF AND THEN THE OXYESTERS CONTAINED IN IT ARE CLEAVED IN THE PRESENCE OF A RELATIVELY LONG-CHAIN ALKYLBENZENESULFONIC ACID AT ELEVATED TEMPERATURES.