Determination of kinetic and energetic parameters of chemical reactions ina heterogeneous liquid/liquid system

A global method is proposed for estimating the kinetic and energetic parame ters of chemical reactions taking place in the continuous phase of a hetero geneous liquid/liquid system. This method, based on energy and mass balance s, uses the thermal power freed or absorbed by the reaction mass. It is onl y applicable to systems with sufficient thermal effects. Knowledge of the m ass flow exchanged between the dispersed and continuous phases is needed to establish the mass balance. It is determined thanks to a model based on th e double film theory. The model was applied to the saponification of pure e thyl acetate in an aqueous reaction mass. It was possible to determine simu ltaneously the velocity constant and the reaction enthalpy, as well as the apparent overall mass transfer constant.