Phase diagrams for the aqueous solutions of Phosphoric acid with 1-Octanol at different temperatures: Experimental and correlateddata

In this work, experimental tie-line data for the (water + phosphoric acid + 1-Octanol) system were obtained at T = 298.2, 308.2, 318.2 and atmospheric pressure. The investigated ternary system exhibits type-1 behavior of LLE. The experimental tie-line data were compared with those correlated by NRTL models. The consistency of the experimental tie-line data was determined through the Othmer Tobias and Hand correlation equations. Distribution coefficients and separation factors were evaluated over the immiscibility regions. The influence of temperature on the equilibrium characteristics and separation factor was found to be considerable at the temperatures studied. A comparison of the extracting capability of the solvent at different temperatures was made with respect to separation factors.