ELectro-oxidation of Glyoxal to Glyoxalic Acid

Authors

Yin-sheng CHEN, UNILAB Research Center of Chemical Reaction Eenginering, East China University of Science and Technology, State Key lab. for Reaction Engineering, Shanghai 200237, China
Xin-sheng ZHANG, UNILAB Research Center of Chemical Reaction Eenginering, East China University of Science and Technology, State Key lab. for Reaction Engineering, Shanghai 200237, China
Jun HU, UNILAB Research Center of Chemical Reaction Eenginering, East China University of Science and Technology, State Key lab. for Reaction Engineering, Shanghai 200237, China
Ying-chun DAI, UNILAB Research Center of Chemical Reaction Eenginering, East China University of Science and Technology, State Key lab. for Reaction Engineering, Shanghai 200237, China

Corresponding Author

Xin-sheng ZHANG

Abstract

An investigation has been made to obtain the glyoxalic acid by the electrochemical oxidation of glyoxal solution with hydrochloric acid under various experimental conditions.The cell used consists of a lead cathode, a DSA anode and a cation-exchange membrane of model CM001. The current efficiency and yield for glyoxalic acid generation were 80.0% and 91.1% respectively, under optimal operating conditions: velocity of electrolyte flow 1.4 m·s^-1 ,current density 450 A·m^-2, temperature 30～40 ℃, initial concentration of glyoxal and hydrochloric acid 9.1%～16.0%, 4%～6%, respectively.

Keywords

Electro-oxidation, Gyoxal, alyoxalic acid

DOI Link

https://doi.org/10.61558/2993-074X.3215

Publication Date

2000-02-28

Online Available Date

2000-02-28

Revised Date

1999-07-27

Received Date

1999-06-10

Recommended Citation

Yin-sheng CHEN, Xin-sheng ZHANG, Jun HU, Ying-chun DAI. ELectro-oxidation of Glyoxal to Glyoxalic Acid[J]. Journal of Electrochemistry, 2000 , 6(1): 102-107.
DOI: 10.61558/2993-074X.3215
Available at: https://jelectrochem.xmu.edu.cn/journal/vol6/iss1/17