Production of carboxylic acids from nitriles

Details Production of carboxylic acids from nitriles Production of carboxylic acids from nitriles

1976-10-07

1978-09-26

Rotman, Alan L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

562484, 562490, 562493, C07D21355, C07C 6326

Patent

active

041169670

ABSTRACT:
A nitrile, such as terephthalonitrile is catalytically reacted with water, in the vapor phase, to produce a gaseous effluent containing the corresponding carboxylic acid, as well as unreacted nitrile, ammonia and water. The acid product is separated from the gas by sublimation, preferably at a temperature above the dew point of the other components of the mixture.

REFERENCES:
patent: 3492345 (1970-01-01), Neugebauer et al.
patent: 3833647 (1974-09-01), Gelbein et al.
patent: 3920670 (1975-11-01), Norton
patent: 3968152 (1976-07-01), Sze et al.

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