Abstract：Peracetic acid is a widely used organic peroxide. Catalytic oxidation of acetic acid by solid acid catalyst to indirectly oxidize cyclohexanone for synthesizing ε-caprolactone is a green production process，in which catalytic oxidation of acetic acid to peroxyacetic acid is a key step. The intrinsic kinetics of synthesis of peracetic acid and H2O2 decomposition kinetics were investigated by chemical titration analysis，using Mg/Sn/W composite oxide as catalyst，H2O2 as oxidant and butyl acetate as entrainer. Internal diffusion effect was basically eliminated when the catalyst particle size is 160 to 200 mesh and external diffusion effect was neglected when stirring speed is greater than 800 r·min－1.The power function model was used to describe the kinetic process. Research results showed that the intrinsic kinetic rate equation of peracetic acid formation reaction is of first order for H2O2 and acetic acid，with the activation energy of 6.761141×104 J·mol－1，and the pre-exponential factor of 6.78090×106. The reaction order of H2O2 decomposition reaction kinetic suitable for this reaction process system is 1.59335，with the activation energy of 7.59041×104J·mol－1， and the pre-exponential factor of 1.08785×108.
2019, Vol. 53 
