Study on optimal process conditions for indirect electrooxidation to benzaldehyde

toluene;  benzaldehyde;  Indirect electrooxidation

The optimal process conditions were obtained by investigating the electrolytic temperature, acid concentration, molar concentration of raw materials and oxygen temperature in the process of indirect electrooxidation to benzaldehyde. That is, the electrolysis conditions are: sulfuric acid concentration 8.0 mol· L-1, temperature 323 K; The oxidation conditions of toluene were: sulfuric acid concentration 8.0 mol· L-1, temperature 333 K. not only keeps the acid concentration consistent in the two stages of electrolysis and oxidation in the indirect electrooxidation process, but also increases the current efficiency of the electrolysis process by about 13.22%, and the benzaldehyde yield of the toluene oxidation reaction increases by about 6.67%.