Experiments and thermodynamic models for ternary liquid-liquid equilibrium systems of water + furfuryl alcohol-ethyl acetate at different temperatures

To explore the ability to separate the water-furfuryl alcohol azeotrope by extraction, the liquid-liquid equilibrium data of the water + furfuryl alcohol + ethyl acetate system at 303.2K, 313.2K, and 323.2K were measured under atmospheric pressure with ethyl acetate as the extractant. The calculated separation factor is far greater than 1, indicating that ethyl acetate is a good extractant for this system. At the same time, the equations of Bachman and Hand were used to perform the consistency test to the experimental data, and the linear correlation coefficients R² were all greater than 0.99. Finally, the NRTL and UNIQUAC thermodynamic models were used to correlate experimental data, and the relative root mean square deviation (RMSD%) was less than 0.53, indicating that NRTL and UNIQUAC can correlate experimental data well.