Liquid-liquid equilibria of water + acetic acid + phthalic esters (dimethyl phthalate and diethyl phthalate) ternaries

Liquid-liquid equilibrium for the quaternary system of o-xylene(1)+water(2)+butyric acid(3)+ethyl acetate(4) at 25 °C and atmospheric pressure

“…Fig. 6 shows the experimental results for the ternary mixtures constituting the quaternary mixtures for o-xylene(1)+ water(2)+butyric acid(3)+ethyl acetate (4).…”

“…The economics of the process, however, depends on the development of an effective recovery method for the organic acids from the broth [2]. Solvent extraction processes as a promising recovery technique have been proposed as an alternative to the conventional precipitation process [3], and many solvents have been tried to improve such recovery [4][5][6][7][8]. The extraction technique has the advantage of continuously removing the acid from the fermented broth and keeping the acids concentration in the broth to a low level.…”

“…The purpose of this work is to get LLE data of o-xylene(1)+water (2)+butyric acid(3)+ethyl acetate (4). The LLE data for the quaternary system were measured at 25 o C and atmospheric pressure.…”

“…The effect of the mixed solvents to separate butyric acid from aqueous solution was investigated. The system studied was a type C quaternary system, and the ternary systems relevant to the quaternary mixtures at 25 o C have been reported for the type 1 systems of oxylene(1)+water(2)+butyric acid(3) and water(2)+butyric acid(3)+ ethyl acetate(4), and the type 2 system of o-xylene(1)+water(2)+ ethyl acetate (4). The LLE data have also been predicted with the UNIFAC method [14][15][16], and the calculated data are compared with the experimental data at 25 o C.…”

Liquid phase equilibria of (water+propionic acid+oleyl alcohol) ternary system at several temperatures

“…A large amount of investigation has been carried out in recent years on the (liquid-liquid) equilibrium (LLE) measurements of ternary systems, in order to understand and provide further information about the phase behaviour of such systems [1][2][3][4][5][6][7].…”