Invention Grant
- Patent Title: Vinyl acetate production process
- Patent Title (中): 乙酸乙烯酯生产工艺
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Application No.: US13087785Application Date: 2011-04-15
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Publication No.: US08399700B2Publication Date: 2013-03-19
- Inventor: Brian Salisbury , Michael E. Fitzpatrick , Wayne Joseph Brtko , Noel C. Hallinan
- Applicant: Brian Salisbury , Michael E. Fitzpatrick , Wayne Joseph Brtko , Noel C. Hallinan
- Applicant Address: US TX Houston
- Assignee: Lyondell Chemical Technology, L.P.
- Current Assignee: Lyondell Chemical Technology, L.P.
- Current Assignee Address: US TX Houston
- Main IPC: C07C67/28
- IPC: C07C67/28

Abstract:
A process is disclosed for the production of vinyl acetate where a mixture of ethylene, acetic acid, and oxygen is reacted in the presence of a catalyst to produce a product mixture of vinyl acetate, ethylene, carbon dioxide, acetic acid, water, ethyl acetate, and ethylene glycol diacetate. The product mixture contains both a gaseous phase and a liquid phase, which are separated. The gas phase contains at least carbon dioxide, which is removed via gas stream. The crude vinyl acetate stream is removed via a liquid stream. The crude vinyl acetate is then further separated to isolate a stream containing at the majority of the ethylene glycol diacetate. The ethylene glycol diacetate stream is then methanolyzed in the presence of a methanolyzing catalyst, to recover methyl acetate, which can be optionally recycled as a feed stock to an acetic acid plant.
Public/Granted literature
- US20120264970A1 VINYL ACETATE PRODUCTION PROCESS Public/Granted day:2012-10-18
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