Process for isolating vinyl acetate

Details Process for isolating vinyl acetate Process for isolating vinyl acetate

2007-11-27

2007-11-27

Eyler, Yvonne (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C560S261000, C560S263000

Reexamination Certificate

active

11484419

ABSTRACT:
A process for isolating vinyl acetate from the gas mixture formed in the reaction of ethylene with acetic acid and oxygen in the gas phase over catalysts comprising palladium or palladium compounds, with recirculation of the acetic-acid solution obtained in the circulating gas scrubber to the first distillation column (predewatering column).

REFERENCES:
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patent: 4818347 (1989-04-01), Roscher et al.
patent: 1 278 430 (1967-02-01), None
patent: 2610624 (1977-09-01), None
patent: 100 42 695 (2000-08-01), None
patent: 0 423 658 (1991-04-01), None

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