Phase Equilibria in the Systems 4-Methyl-2-Pentanone + Octane and Hexane + 1,3-Dioxolane

Abstract

Vapor-liquid equilibrium at 94 kPa has been determined for the binary systems 4-methyl-2-penatanone (methyl isobutyl ketone) + octane and hexane + 1,3-dioxolane. the system 4-methyl-2-pentanone + octane behaves like a regular solution, with moderate deviations from ideal behavior, and presents an azeotrope that boils at 384.05 K and contains 70 mole % ketone. the system hexane + 1,3-dioxolane deviates strongly from ideal behavior and has an azeotrope that boils at 332.76 K and contains 55 mole % hexane. the activity coefficients and boiling points of both binary systems were well correlated with its composition by the Redlich-Kister, Wohl, Wilson. UNIQUAC, NRTL and Wisniak-Tamir equations.

Key Words:

• Vapor-liquid equilibrium
• models