Phase equilibria for reactive distillation of Diethyl succinate (cas 123-25-1). Part II: Systems Diethyl succinate (cas 123-25-1) + ethyl acetate + water and Diethyl succinate (cas 123-25-1) + acetic acid + water

Add time:09/10/2019    Source:sciencedirect.com

Liquid–liquid equilibrium data were measured for the ternary systems water + ethyl acetate + diethyl succinate and water + acetic acid + diethyl succinate at 298.15 K and atmospheric pressure. The reliability of the experimental data was confirmed using the Othmer–Tobias correlation. Vapor–liquid equilibrium data were also measured for the binary systems ethyl acetate + diethyl succinate at 313.15 K, acetic acid + diethyl succinate at 323.15 K and ethyl acetate + ethanol at 101.325 kPa. Binary parameters for the modified UNIQUAC and NRTL equations were obtained by fitting experimental and reported data using the regression tool in Aspen Plus®. The Hayden–O’Connell equation was used to represent interactions in the vapor phase. The models agree reasonably well with the experimental data and can predict reported azeotropic conditions.

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