According to the characteristic of synthetization of 2-ethoxyethanol acetate catalysed by rare-earth salt, the equation of reaction rate is made up under non-isothermal and vol. ume-varying condition. A dynamic method used to calculate the kinetic parameters is also made up by a curve of experimental data. By kinetic calculation, it is obtained that the overall order is second, the apparent activation energy is 213.59kJ·mol^-^1, and the frequency factor is 5.903×10^2^5dm^3·mol^-^1·min^-^1.

Key words: ESTERIFICATION, ISOTHERMALS, KINETIC STUDY