Process for a continuous industrial preparation of an aqueous solution of glyoxylic acid

Continuous manufacturing process for an aqueous solution of glyoxylic acid by nitric oxidation of an aqueous solution of glyoxal carried out in the presence of hydrochloric acid in which the oxidation is effected continuously using 0.80+/-0.2 mole of nitric acid and 0.70+/-0.05 mole of hydrochloric...

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Bibliographic Details
Main Authors ALARCON, JEAN-MICHEL, SCHOUTEETEN, ALAIN
Format Patent
LanguageEnglish
French
German
Published 28.09.1994
Edition5
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:Continuous manufacturing process for an aqueous solution of glyoxylic acid by nitric oxidation of an aqueous solution of glyoxal carried out in the presence of hydrochloric acid in which the oxidation is effected continuously using 0.80+/-0.2 mole of nitric acid and 0.70+/-0.05 mole of hydrochloric acid per mole of glyoxal in a reaction medium having a concentration by weight between 5 and 6% of hydrochloric acid and higher than 10% of nitric acid.
Bibliography:Application Number: EP19900403072