The Use of Perturbatiou Theory iu The Vapor-Liquid Equilibrium Calculation of Salted Binary System

In this paper the isobaric vapor-liquid equilibrium data of Methanol-Dioxane （NaI, NaSCN） and Methanol-THF-LiCl systems have been calculated with perturbation theory. The results calculated are compared with the results corrected with Wilson formular. We find that perturbation theory can calculate Vapor-Liquid Equilibrium of salted binary systems well. In addtion to, We find that azeotrope can be disappeared by adding LiCl. The result has the importance in the industry.