(Liquid+liquid) equilibria in ternary aqueous mixtures of phosphoric acid with organic solvents at T=298.2K

Purification of Phosphoric Acid by Liquid‐Liquid Equilibrium

“…In recent years, significant investigations on LLE measurements and the extraction of phosphoric acid from aqueous solutions have been carried out, while many solvents have mainly been tested, in order to understand and provide further information for accurate interpretation of phase equilibria of the different multicomponent mixtures with phosphoric acid [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. As a detailed evaluation of extraction abilities of the different solvents reported in the literature, including alcohols, esters, ethers, ketones, and hydrocarbons to extract phosphoric acid from aqueous solutions, a comparative study is listed in Table 2.…”

Phase equilibria of (water+propionic acid or butyric acid+2-methoxy-2-methylpropane) ternary systems at 298.2K and 323.2K

“…The procedures of measuring LLE data experiments in this study were listed as follows [17][18][19][20]. First, a 55mL ternary mixture were loaded in a 200mL glass cell, surrounded by a thermostat water jacket whose temperature was controlled by a thermostatic bath with a fluctuation of ± 0.1 K. Second, the ternary mixture was vigorously agitated for more than 2 hour, and then was left to stand for 18h or more to reach the phase equilibrium.…”

Liquid–Liquid Equilibrium for 2-Methyl-2-butanol + Water + o-Xylene at Different Temperatures

“…Chafer et al 18 measured the LLE data of 2-methyl-2-butanol + water + glycerol at 283.2 and 323.2 K and at atmospheric pressure. Chiou et al 19 investigated the LLE of the ternary system 2methyl-2-butanol + water + diethylene glycol monohexyl ether at 293.15, 303.15, and 313.15 K. Ghanadzadeh et al 20 studied the LLE of 2-methyl-2-butanol + water + phosphoric acid at 298.2 K. Peschke et al 21 reported the LLE of ternary systems of 2-methyl-2-butanol + water + toluene and 2-methyl-2-butanol + water + 2,2,4-trimethylpentane at 298.2 K. The LLE data of the systems 2-methyl-2-butanol + water + solvent in the open literature were not intended to separate 2-methyl-2-butanol and water by extraction. And the reported solvents, glycerol, diethylene glycol monohexyl ether, phosphoric acid, toluene, and 2,2,4-trimethylpentane, have disadvantages such as corrosion, high viscosity, high boiling point, toxicity, low selectivity, high price, difficulties in succeeding separation process, and so on, which impedes the use of the reported solvents in industry.…”