Process for the manufacture of aqueous solutions of glyoxylic ac

Details Process for the manufacture of aqueous solutions of glyoxylic ac Process for the manufacture of aqueous solutions of glyoxylic ac

1989-07-03

1992-02-25

Garner, Vivian

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

Organic compounds

Carboxylic acids and salts thereof

562577, C07C 59153, C07C 51235, C07C 5127

Patent

active

050915665

ABSTRACT:
The invention relates to the preparation of glyoxylic acid by oxidizing an aqueous solution of glyoxal having a pH less than 1 with molecular oxygen in the presence of nitrogen monoxide as a catalyst.
This process allows the practically total conversion of the starting glyoxal with a good yield of glyoxylic acid.

REFERENCES:
patent: 2298387 (1942-10-01), Kenyon et al.

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