Salt Effect of Alcohol-Water System Vapor-Liquid Equilibrium and its Application in Distillation Process

Salt distillation was a new kind of separation technologies.In this paper,salt effect of alcohol-water system vapor-liquid equilibrium was summarized.And theories of salt effect were outlined.Then applications of salt distillation in alcohol-water system separation were discussed in detail,including distillation with soluble salt,extractive distillation with salt,extractive and reactive distillation with salt.At the same time,their advantages and disadvantages were also introduced.At last,future research of salt distillation for alcohol-water system was forecased.