D. Datta, M. E. Marti, D. Pal
Jan 12, 2017
Citations
1
Influential Citations
39
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Journal
Journal of Chemical & Engineering Data
Abstract
In the present study, the reactive extraction of levulinic acid (4-oxopentanoic acid) was investigated by using Aliquat 336 in various organic solvents [benzene, dichloromethane (DCM), dodecane, methyl isobutyl ketone (MIBK), 1-octanol] from dilute aqueous solution. Equilibrium data obtained at 298 K and 101.325 kPa were used to determine the values of distribution coefficient (KD), degree of extraction (E%), loading factor (Z), and complexation constants (KE). Among the diluents tested, DCM gave the highest extraction efficiency. Using 0.5454 mol·kg–1 of Aliquat 336 in DCM, KD and E% were obtained as 2.082 and 67.55%, respectively, at 0.2795 mol·kg–1 initial acid concentration in the aqueous solution. Z values were found to be between 0.033 and 1.628 depending on the nature of the diluent used and Aliquat 336 concentration in the organic phase. Using mass action law modeling, the stoichiometry of the extraction reaction was determined. It was observed that mostly 1:1, 2:1, and 3:1 types of complexes were...