Investigation of the Phase Equilibrium in Ternary Systems Formed by 2,2,2-Trifluoroethanol, Water, and Organic Alcohols

Effect of Sulfolane, Dimethyl Sulfoxide, and N-Methyl-2-pyrrolidone on Relative Volatility of a 2,2,2-Trifluoroethanol–Isopropanol Azeotropic System

“…For the IPA–DMSO system, they were estimated by isobaric data from the paper at 6.7 kPa and for the IPA–NMP system, simultaneously by three data setsisobaric data from paper at 95.3 kPa and isothermal data from the paper at 80 and 100 °C. The binary interaction parameters of the NRTL and Wilson equations for the TFE–IPA system were taken from the paper . While for the TFE–DMSO and TFE–NMP systems, the correlation was performed with different numbers of binary interaction parameters and from different sets (binary, ternary, and simultaneously from binary and ternary) of experimental data obtained in this work.…”

“…Phase equilibrium transformation of the TFE(1)–IPA(2)–SA(3) system on a solvent-free basis at 96 kPa (720 mm Hg). 1in the presence of DMSO (Table ); 2in the presence of NMP (Table ); and 3without SA and are the relative component concentrations in the liquid and vapor phase, respectively.…”

“…After the system remains in the stationary state for 40 min, the equilibrium temperature is fixed and samples of liquid 11 and condensed vapor 10 are taken for subsequent analysis. The validation and reliability of the experimental methodology were provided in our previous work . The experimental results from the work compared to the literature values, that is, the VLE data of the existing binary TFE–water system from the literature were compared with those of the same binary system of the VLE which were obtained in our work.…”

“…The experimental results from the work compared to the literature values, that is, the VLE data of the existing binary TFE–water system from the literature were compared with those of the same binary system of the VLE which were obtained in our work. The presented dependences show the agreement between the experimental results of our work and Jadot and Fraiha’s data …”

“…In this case, the most important step is studying the features of the phase behavior of the systems under research . Previously, we showed that at pressures close to atmospheric, the TFE–isopropanol (IPA) system is complicated by the presence of an azeotrope (Az) with a maximum boiling point. Thus, the separation of the system into pure components requires using special methods based on the redistribution of concentration fields. , …”