SEPARATION OF MONOALKYL MALEATE FROM DIALKYL MALEATE

摘要

A method of producing substantially pure dialkyl maleate by separating monalkyl maleate from dialkyl maleate in a short residence time distillation zone while minimizing reversion of the monalkyl maleate to alkanol and maleic anhydride and without having to neutralize the monoalkyl maleate.