Purification of glycidyl esters by thin film evaporation

Details Purification of glycidyl esters by thin film evaporation Purification of glycidyl esters by thin film evaporation

C - Chemistry, Metallurgy

07

D

C07D 303/16 (2006.01) C07D 301/32 (2006.01)

Patent

CA 2254110

A process for the distillation of the glycidyl ester reaction product of a straight or branched chain saturated monocarboxylic acid or salt thereof and a halosubstituted monoepoxide is disclosed, wherein the reaction product is subjected to conditions of temperature and vacuum in a thin film, short pass distillation apparatus such as a wiped film evaporator. The product distillate has significantly reduced color than the reaction product prior to distillation, and has improved heat and color stability.

Description d'un procédé de distillation des esters de glycidile, qui sont des produits d'une réaction entre un acide monocarboxylique saturé à chaîne droite ou ramifiée, ou un sel de cet acide, et un monoépoxyde halosubstitué; selon ce procédé, le produit de ladite réaction est soumis à l'action du vide et de la température dans un appareil de distillation à film mince et à passage court, par exemple, dans un évaporateur de film balayé. Le distillat est beaucoup moins coloré que le produit avant la distillation et possède une stabilité de couleur et une thermostabilité accrues.

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