Patent ID: 7528278
Filing Date: 2009-05-05
Classification: B01J,C07C,C07D,Y02P

Abstract:
1. A transesterification process, comprising the steps of: (a) forming a reaction mixture, comprising: (b) adding a heterogeneous mixed salt transesterification catalyst to the reaction mixture; wherein the mixed salt catalyst comprises at least one base and at least one modifier salt selected from the group consiting of potassium chloride, lithium chloride, cesium chloride. magnesium chloride, zinc chloride, zinc fluoride, cesium, fluoride, potassium fluoride, lithium fluoride, and magnesium fluoride; (c) heating the reaction mixture to commence reaction of the alkyl (meth)acrylate with the at least one alcohol to form a (meth)acrylate ester having Formula II: wherein R═H or CH 3 , and R′O=an alkoxide of the at least one alcohol, and a product alcohol having Formula III: wherein R′═C 1 -C 8 straight or wherein R′═C 1 -C 8 straight or branched alkyl; and (d) removing, by distillation, a mixture of Formula III and Formula I.