Purification of aqueous glyoxal solutions

Details Purification of aqueous glyoxal solutions Purification of aqueous glyoxal solutions

1984-01-23

1985-06-04

Lone, Werren B.

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

Organic compounds

Oxygen containing

C07C 4578, C07C 4580

Patent

active

045216320

ABSTRACT:
Aqueous solutions of glyoxal which contain acids are purified by treatment with a solution which contains from 20 to 60% by weight of a tertiary amine and from 80 to 40% by weight of an alcohol which is not infinitely miscible with water, the treatment being carried out by mixing the two solutions during a residence time of less than 5 minutes.

REFERENCES:
patent: 3270062 (1966-04-01), Merz et al.
patent: 3860156 (1975-08-01), Lawrence
patent: 3860656 (1975-01-01), McCain et al.
patent: 4065506 (1977-12-01), Wessendorf et al.

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