SEPARATION IMPROVEMENT IN A METHOD FOR PRODUCING ACRYLIC ESTERS FROM VEGETABLE OR ANIMAL OIL AND AN ALIPHATHIC MONOALCOHOL

摘要

The invention relates to a method for producing alkyl esters of fatty acids and glycerine using, in a reaction section, a reaction assembly for the transesterification between a vegetable or animal oil and an aliphathic monoalcohol and using a heterogeneous solid catalyst, comprising: a) the step of inserting a glycerine phase; b) the step of evaporating the excess alcohol; and c) the step of decanting the glycerine phase. The supernatant ester phase obtained after decantation is further optionally fed to a coalescer also for separating the glycerine, and to a purification step by adsorption on solids. This improved method prevents the formation of micro-emulsions.