Vinyl acetate production process
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United States of America Patent
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Issued Date -
Apr 14, 2011
app pub date -
Oct 9, 2009
filing date -
Oct 9, 2009
priority date (Note) -
Abandoned
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Abstract
A process for the production of vinyl acetate is disclosed. The process comprises reacting ethylene, acetic acid, and oxygen in the presence of a catalyst to produce a reaction mixture comprising vinyl acetate, ethylene, carbon dioxide, acetic acid and ethylene glycol diacetate. The reaction mixture is separated to a gas stream comprising ethylene, oxygen, and carbon dioxide and a crude vinyl acetate stream comprising vinyl acetate, acetic acid and ethylene glycol diacetate. An ethylene glycol diacetate stream, which comprises at least 50 wt % of ethylene glycol diacetate, is isolated from the crude vinyl acetate stream and hydrolyzed to recover acetic acid. Recovered acetic acid may be recycled to the acetoxidation reaction.
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