Recovery of acetic acid from methyl acetate

Details Recovery of acetic acid from methyl acetate Recovery of acetic acid from methyl acetate

1990-11-20

1992-05-12

Shippen, Michael L.

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

Organic compounds

Carboxylic acids and salts thereof

562414, 562485, 562480, 203DIG6, C07C 5142, C07C 51215, C07C 51265

Patent

active

051130157

ABSTRACT:
There is provided a process for recovering acetic acid from methyl acetate wherein the methyl acetate is hydrolyzed catalytically to methanol and acetic acid in the same tower or column that is used to separate the methanol from the acetic acid and the hydrolysis and separation are carried out coextensively in the vessel. The process is employed suitably in a process for the partial oxidation of a polymethylbenzene to a polycarboxylic acid in the presence of an oxidation catalyst and an acetic acid solvent.

REFERENCES:
patent: 3317593 (1967-05-01), Enk et al.
patent: 4086270 (1978-04-01), Wynkoop et al.
patent: 4232177 (1980-11-01), Smith, Jr.
patent: 4307254 (1981-12-01), Smith, Jr.
patent: 4336407 (1982-06-01), Smith, Jr.
patent: 4978807 (1990-12-01), Smith, Jr.
patent: 4982022 (1991-01-01), Smith, Jr. et al.

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