Chemistry: electrical and wave energy – Processes and products
Patent
1985-07-29
1986-06-17
Williams, Howard S.
Chemistry: electrical and wave energy
Processes and products
C25B 302
Patent
active
045954674
ABSTRACT:
Process for preparation of glyoxylic acid through electrochemical anodic oxidation of glyoxal in aqueous solution at a temperature comprised between 0.degree. C. and 70.degree. C. in an electrolyzer comprising at least one cathodic compartment containing a cathode and a catholyte, at least one anodic compartment containing an anode and an anolyte, consisting of an aqueous solution of glyoxal and an electrolyte, and at least one separator between both of these compartments. In such process the anode is doped by metallic adatoms selected from the group comprising silver, bismuth, copper, tin and thallium.
REFERENCES:
patent: 4235684 (1980-11-01), Harada et al.
Journal of the Electrochemical Society, vol. 130, No. 6, Jun. 1983, pp. 1305-1312, Manchester, N.H.; E. Leiva et al., "The Influence of Platinum Electrode Surface on the Electroadsorption and Electro-Oxidation of Methanol in Acid Solutions".
Chemical Abstracts, vol. 90, No. 24, 6/11/79, p. 515, Resume 194539j, Columbus, Ohio; G. Inzelt et al.; "Electrochemical Behavior of Ethylene Glycol and Its Oxidation Products on a Platinum Electrode.III. Effect of Chemisorption on the Kinetics of Oxidation of Glyoxal and Glyoxalic Acid".
Cauquis Georges
Kordi Mokhlis E.
Pierre Gerard
Neimark Sheridan
Societe Francaise Hoechst
Williams Howard S.
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