Answer to Question #167394 in Inorganic Chemistry for Lali

Question

can someone help me with the Liquid-Liquid ternary phase diagram data for Aniline-Dimethyl carbonate- Methanol and Phenol-Dimethly carbonate- Methanol.

I am designing an extractive distillation column using aniline and phenol as entrainers and my aim is to make comparison of both entrainers/solvents. I have searched literature and came up with nothing.

Answer 1

The vapor pressures of (monoethanolamine (MEA) + water) and (4-methylmorpholine + water) and of all the pure components were measured by means of two static devices at temperatures between (283 and 363) K. The data were correlated with the Antoine equation. From these data, excess Gibbs functions were calculated for several constant temperatures and fitted to a fourth-order Redlich−Kister equation using Barker’s method. The (4-methylmorpholine + water) binary system shows maximum azeotropic behavior over the whole temperature range. The (MEA + water) binary mixture exhibits negative deviations in GE, whereas for the (4-methylmorpholine + water) system, the excess Gibbs energy is positive for all investigated temperatures over the whole composition range.