Record number :
1987507
Title of article :
Phase equilibria of (water + levulinic acid + dibasic esters) ternary systems
Author/Authors :
Uslu، نويسنده , , Hasan and G?k، نويسنده , , Asl? and K?rba?lar، نويسنده , , ?. ?smail، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Pages :
5
From page :
20
To page :
24
Abstract :
Liquid–liquid equilibrium (LLE) data of the solubility (binodal) curves and tie-line end compositions were examined for mixtures of {(water (1) + levulinic acid (2) + dimethyl succinate or dimethyl glutarate or dimethyl adipate (3)} at 298.15 K and 101.3 ± 0.7 kPa. The reliability of the experimental tie-line data was confirmed by using the Othmer–Tobias correlation. The LLE data of the ternary systems were predicted by UNIFAC method. The LLE data were correlated fairly well with UNIQUAC and NRTL models, indicating the reliability of the UNIQUAC and NRTL equations for these ternary systems. The best results were achieved with the NRTL equation, using non-randomness parameter (α = 0.3) for the correlation. Distribution coefficients and separation factors were measured to evaluate the extracting capability of the solvents.
Keywords :
Levulinic acid , Dimethyl succinate , UNIFAC , Dimethyl adipate , NRTL , UNIQUAC , (Liquid–liquid) equilibria , Dimethyl glutarate
Journal title :
Fluid Phase Equilibria
Serial Year :
2009
Link To Document :
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