ABSTRACT

In order to provide data support for the recovery and treatment of furfuryl alcohol wastewater, the liquid-liquid equilibrium data of water + furfuryl alcohol + methyl acetate system at 303.15K, 313.15K and 323.15K were investigated at 101.3 kPa. The extraction effect was evaluated by the calculated partition coefficient and separation factor, and the calculated results were all greater than 1, indicating that methyl acetate has good extraction capacity and extraction effect as an extractant. Hand and Othmer-Tobias empirical equations were used to test the consistency of the experimental data, and the linear correlation coefficient R2 was ≥ 0.99. NRTL and UNIQUAC thermodynamic models were used to correlate the experimental data, and the relative root mean square deviation (RMSD) and average absolute deviation (AAD) were both lower than 0.0085, indicating that NRTL and UNIQUAC can correlate the experimental data well.