Liquid-liquid equilibria of propionic acid - water - solvent (n-hexane, cyclohexane, cyclohexanol and cyclohexyl acetate) ternaries at 298.15 K

Abstract

-The experimental liquid-liquid equilibrium data on propionic acid-water-solvent ternary mixtures at a temperature of 298.15 K are presented. The solvents are n-hexane, cyclohexane, cyclohexanol and cyclohexyl acetate. The distribution coefficients and separation factors are reported. The tie line data are correlated using the methods of Othmer-Tobias and Hand. The experimental results are compared with the values predicted by the UNIFAC group-contribution method.

Liquid–liquid equilibrium of ternary systems 1-octyl-3-methylimidazolium hexafluorophosphate + aromatic + aliphatic hydrocarbons

“…According to Othmer and Tobias [8], the linearity of this correlation indicates the degree of consistency of the data; this procedure has been used for many authors [12][13][14][15][16][17]. The Othmer-Tobias correlation is:…”

(Liquid+liquid) equilibria of (water+propionic acid+dipropyl ether or diisopropyl ether) at T=298.2K

“…Recovery of the organic acid from aqueous solutions that are resulted from fermentation processes is also of considerable economic importance. Many solvents have been used to enhance the extraction of propionic acid from aqueous solutions [1][2][3][4][5][6][7][8][9][10][11].…”

(Liquid+liquid) equilibria of (water+propionic acid+alcohol) ternary systems

“…Several studies have been carried out to provide LLE data to extract propionic acid from its dilute aqueous solutions [16][17][18][19][20][21][22][23]. In this paper, we report the LLE results for the four ternary system, (water + propionic acid + octanol), (water + propionic …”