Solid–Liquid Equilibrium (SLE) for Polyhydric Alcohol + Cs₂SO₄ + H₂O Ternary Systems at Different Temperatures

Abstract

The solubility, density, and refractive index data for 1,2-propanediol þ Cs 2 SO 4 þ H 2 O, ethylene glycol þ Cs 2 SO 4 þ H 2 O, and glycerin þ Cs 2 SO 4 þ H 2 O ternary systems were determined at 15 C, 25 C, and 35 C. In all cases, the solubility of Cs 2 SO 4 in aqueous solutions decreased significantly due to the presence of the polyhydric alcohol. The experimental density, refractive index, and solubility data of saturated solutions for these systems were correlated using polynomial equations. Furthermore, the refractive index and density of unsaturated ternary solutions were also determined and correlated with salt concentrations and proportions of polyhydric alcohol in these systems.

Antisolvent Precipitation of Potassium Bicarbonate from KHCO3 + H2O + Ethanol/2-Propanol Systems in the CO2 Capture Process

“…For the correlation of the solid–liquid equilibrium, the following empirical equation , was used. Here, w 1 and w 3 are the mass fractions of the KHCO 3 and antisolvent, respectively, and a 0 , a 1 , a 2 , and a 3 are fitting parameters.…”