Experimental study of phase equilibria in aqueous mixtures of phosphoric acid with isoamyl acetate and methyl isoamyl ketone at T=(298.2, 308.2, and 318.2)K

Comparative Study of Liquid–Liquid Equilibria for Aqueous Mixtures of Phosphoric Acid with Two Structurally Similar Carbonyl Compounds: Measurement and Correlation

“…(a) Distribution coefficient ( D 2 ) and (b) separation factor ( S ) plotted against the mass fraction of the acid in the aqueous phase for water–PA–esters: (○) n -propyl acetate, (■) n -butyl acetate, (△) n -amyl acetate, (+) isoamyl acetate, (□) n -hexyl acetate, (◇) cyclohexyl acetate, (◆) heptyl acetate, (●) methyl isoamyl ketone, (▲) EB (this work), and (×) DPK (this work).…”

“…The LLE data and phase behavior for the aqueous solutions of PA with several organic solvents have been reported in our previous publications. − In this work, the equilibrium data for the water + PA + carbonyl solvents ternary systems at three different temperatures 298.2, 308.2, and 318.2 K were measured and compared. The chosen carbonyl solvents with structural similarity were dipropyl ketone (DPK) and ethyl butyrate (EB), although they belong to the different class of ketone and ester.…”

Purification of Phosphoric Acid by Liquid‐Liquid Equilibrium

“…Besides, the water content of the organic phase was measured by the Karl-Fisher method [6] and the water contained in the aqueous layer was determined using refractive index measurement method [8]. The obtained tie line data for (water þ phosphoric acid þ methyl isoamyl ketone (MIAK)) [9] and (water þ phosphoric acid þ dichloromethane (DCM)) [10] ternary systems are presented in Figure 2 and Table 1, respectively. As either the temperature or pressure is varied, the location of the binodal curve and slopes of the tie lines may change (see Figures 1 and 2).…”

“…Meanwhile, it seems that the measurement of the (liquid þ liquid) equilibrium data of Water þ phosphoric acid þ toluene Hydrocarbon, aromatic hydrocarbon 308.2 26.50 [24] Water þ phosphoric acid þ ethyl benzene Hydrocarbon, aromatic hydrocarbon 298.2 32.70 [25] Water þ phosphoric acid þ isopropyl benzene Hydrocarbon, aromatic hydrocarbon 298.2 23.70 [25] Water þ phosphoric acid þ dichloromethane (DCM) Halogenated aliphatic hydrocarbon 298.2 1.04 [26] Water þ phosphoric acid þ DCM þ 10 wt% NaCl Halogenated aliphatic hydrocarbon þ salt 298.2 2.20 [26] Water þ phosphoric acid þ DCM þ 10 wt% CaCl 2 Halogenated aliphatic hydrocarbon þ salt 298.2 1.39 [26] Water þ phosphoric acid þ 1,2-dichloroethane (DCE) Halogenated aliphatic hydrocarbon 298.2 1.10 [26] Water þ phosphoric acid þ DCE þ 10 wt% NaCl Halogenated aliphatic hydrocarbon þ salt 298.2 2.35 [26] Water þ phosphoric acid þ DCE þ 10 wt% CaCl 2 Halogenated aliphatic hydrocarbon þ salt 298.2 2.13 [26] Water þ phosphoric acid þ methyl isobutyl ketone Ketone 308.2 1.26 [14] Water þ phosphoric acid þ methyl isoamyl ketone Ketone 298.2 11.00 [9] Water þ phosphoric acid þ methyl ethyl ketone Ketone 308.2 0.91 The maximum values of separation factors for the (water þ phosphoric acid þ solvent) ternary systems.…”

Liquid-Liquid Equilibria of the Phosphoric Acid, Ester and Water Ternary System

“…The quality of the aquatic system is dependent on the hydrogeochemical processes and reactions, the chemical and physical properties of surrounding rocks in the recharge area, the quantitative and qualitative properties of through-flowing water bodies and the products of human activity. Phosphoric acid plays a significant role and has applications in various industries of petrochemical operations, pharmaceutical productions, food industry, detergents, insecticides, and agricultural fertilizers (Pa rameswaran and Paluri, 1968;McCullough and Frederick, 1976;Ghanadzadeh Gilani et al, 2013;Bahrpaima, 2017;Shekarsaraee, 2017). Liquid-liquid extraction (LLE) is a technique used in the process industry due to its simplicity, rapid method development, and reasonable selectivity (Kumar et al, 2011;Hamdi and Hannachi, 2012;Bahrpaima, 2017).…”