Method for preparing acrylic ester and separation 1, 2-dichloropropane by using DD mixing agent

The present invention relates to a method capable of utilizing DD mixture to prepare acrylate and separating 1,2-dichloropropane from it. Said invention utilizes the action of 1,3-dichloropropene in the DD mixture and acrylic acid or methylacrylic acid, alkali, catalyst and and polymerization inhibi...

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Hauptverfasser: JIANFEI SUN, XUANG SHI, LUTIAN FENG
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to a method capable of utilizing DD mixture to prepare acrylate and separating 1,2-dichloropropane from it. Said invention utilizes the action of 1,3-dichloropropene in the DD mixture and acrylic acid or methylacrylic acid, alkali, catalyst and and polymerization inhibitor to synthesize 3-chloro-2-propenyl acrylate or 3-chloro-2-propenyl 2-methacrylate, and utilizes the distillation to make it be separated from 1,2-dichloropropane. Said method includes the steps of raw material pretreatment, catalytic esterification reaction, product separation and product refinement.