Using N-Benzylquinolinium Chloride to Separate an Azeotropic Methanol-Benzene System

A study is performed of using quinolinium salt as a separating agent for double azeotropic mixtures in the process of extractive distillation. Gas chromatography is employed to study the liquid-vapor equilibrium in a methanol-benzene-chloride N-benzylquinolinium system at 101.3 kPa and different concentrations of organic salt. It is established that a 0.25 concentration (in mole fractions) of chloride N-benzylquinolinium or more is needed to destroy the azeotrope and separate the mixed solvent into components.

Automated summary

This study investigates the use of quinolinium salt as a separating agent for double azeotropic mixtures in extractive distillation. Gas chromatography is used to analyze the liquid-vapor equilibrium in a methanol-benzene-chloride N-benzylquinolinium system at different concentrations of organic salt. The study establishes that a concentration of 0.25 or higher is required to break the azeotrope and separate the mixed solvent into its components.