Kinetics of butyl acetate synthesis with MgSO₄ modified ion exchange resins

The reaction kinetics of the liquid phase synthesis of butyl acetate with MgSO₄ modified strong-acid cationic-exchange resins as catalyst was investigated in a stirred batch reactor. Without internal and external diffusion, the influence of catalyst dosage and reaction temperature on the concentration change of acetic acid with reaction time was determined. The reaction condition is: mass fraction of catalyst to the total reactant 0.005~0.04, temperature 353.2~373.2 K, and pressure 101.3 kPa, and the parameters of the kinectic model for the reversible second-order reaction were obtained. The catalyst dosage influence was evaluated by the initial reaction rate method. The frequency factor is 5.84×10¹⁰ L·(mol·min)^-1 and the activation energy is 87409.57 J·mol^-1. The accuracy of the reaction kinetic equation was testified under the above experimental conditions and the result shows that the calculated values are consistent with experimental values.