The purpose of this paper is to investigate the gas-liquid-liquid mass transfer of 2

3

6-trimethylphenol (TMP) oxidation under oxygen. The reaction can be regarded as rapid and takes place in liquid-film. The oxidation rate is in first order with respect to TMP concentration. Under the condition of liquid film controlling

the effects of water phase volume fraction (ε)

stirring speed (n)

impeller diameter(d) and gas ventilation (V) on kL(O2)a were investigated. The results showed that a phase inversion took place when ε surpassed 0.58

and the trend of kL(O2)a changed significantly

kL(O2)a increased with increasing n

d and V. Considering the effects of all the four factors on kL(O2)a

a dimensionless correlation equation of kL(O2)a can be obtained. The calculated values are in good agreement with the experimental values with the relative deviation between 1.18% and 10.15%

and the average relative deviation of 4.53%

which shows that the equation fitting is reasonable.