Rectification separation process of 2-butenoic acid crude product

The invention discloses a rectification separation process of a 2-butenoic acid crude product, which comprises the following steps: S1, carrying out light component removal treatment on the 2-butenoic acid crude product, separating light components from the top of a light component removal tower, ex...

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Bibliographic Details
Main Authors CHEN JIANHUA, LIU WEI, MA LONGLONG, QIN ZILIANG, WANG XINJIAN, LIANG JIANCHENG
Format Patent
LanguageChinese
English
Published 23.06.2023
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:The invention discloses a rectification separation process of a 2-butenoic acid crude product, which comprises the following steps: S1, carrying out light component removal treatment on the 2-butenoic acid crude product, separating light components from the top of a light component removal tower, extracting a material A from a tower kettle, and sending the material A to a solvent removal tower; s2, desolventizing the material A, separating a material B from the top of a desolventizing tower, extracting a material C from a tower kettle, and sending the material C to a crotonaldehyde removal tower; s3, removing 2-butenal from the material C, separating a material D from the top of a crotonaldehyde removal tower, extracting a material E from a tower kettle, and sending the material E to a finished product tower; and S4, carrying out cis-2-butenoic acid removal treatment and high-boiling-point substance removal treatment on the material E, separating out a material F from the tower top of a finished product tower
Bibliography:Application Number: CN202310562655