Continuous industrial manufacturing process for an aqueous...

Details Continuous industrial manufacturing process for an aqueous... Continuous industrial manufacturing process for an aqueous...

C - Chemistry, Metallurgy

07

C

260/526.8

C07C 51/27 (2006.01) C07C 59/153 (2006.01)

Patent

CA 2029650

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 comprised between 5 and 6% of hydrochloric acid and higher than 10% of nitric acid.

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