Process for the removal of aldehydes and acetals from industrial

Details Process for the removal of aldehydes and acetals from industrial Process for the removal of aldehydes and acetals from industrial

1994-07-29

1997-04-15

Manoharan, Virginia

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

203 35, 203 64, 203 92, 203 95, 203 96, 562608, B01D 334, C07C 5144

Patent

active

056205678

ABSTRACT:
A process for the removal of aldehydes and acetals from industrially prepared acetic acid, wherein the contaminated acetic acid is reacted in the presence of a Bronstedt acid and 0.05 to 1% by weight of water and, if required, of 3 to 10 equivalents, calculated on aldehyde and acetal, of a high boiling polyhydric alcohol, and isolating the purified acetic acid by fractional distillation.

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CAS 108: 2065 45.
CAS 73: 24918.

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