Liquid–Liquid Equilibria Data and Thermodynamic Modeling for the Ternary System of Water, 2,2,3,3-Tetrafluoro-1-propanol, and Different Solvents

Abstract

Liquid–liquid equilibrium (LLE) data for the ternary mixture of water + 2,2,3,3-tetrafluoro-1-propanol (TFP) + {1-pentanol or 2-ethyl-1-hexanol or n-propyl acetate or dichloromethane} was measured in 101.3 KPa and 303.2 K. The distribution coefficient and separation factor appraised utility for extracting TFP from water. The experimental LLE data were related by the nonrandom two liquid and universal quasichemical models for which the absolute average deviation and root means square deviation were no more than 0.0029 and 0.0035, respectively.

Comparative evaluation of liquid–liquid equilibria for extraction of 2,2,3,3‐tetrafluoro‐1‐propanol from water by a ZIF‐8‐porous ionic liquid

“…When the cation of the ILs was imidazole, the length increase of the cationic alkyl chain can improve the extraction effect. In Table 4, the values of S for ZIF‐8‐PIL and IL are compared with those of other organic solvents, such as alcohol, ether, esters and ketone 5,20,43‐45 . As is obvious, ZIF‐8‐PIL has great potential for extracting TFP, although the values of S for PIL are smaller than that of some organic solvents.…”

Liquid–Liquid Equilibrium Study of Ternary Systems of (Water + Furfuryl Alcohol + Solvents) at 303.2, 313.2, and 323.2 K

“…The objective function fitted the interaction parameters of each model. The objective function is as follows: where w cal is the calculated mass fraction of components, and w exp is their experimental mass fraction. Subscripts k means the tie-line, j means the phase, and i means the components.…”

“…As an effective separation method, liquid−liquid extraction is often used in energy-saving processes. 7 At present, there have been some studies in the literature on the extraction of liquid− liquid equilibrium (LLE) from FAL with certain solvents. Phatanasri et al 8 explored the LLE of water + FAL + ethyl acetate, methyl isobutyl ketone, 2-furaldehyde, or 1-butanol at 298.2 K. Dong et al 9 investigated the LLE data of water + FAL + methyl tert-butyl ether, isopropyl ether, methylene chloride, or 4-methyl-2-pentanol at 298.2 K. Han et al 10 measured the LLE of water + FAL +1-pentanol or n-propyl acetate.…”

“…As an effective separation method, liquid–liquid extraction is often used in energy-saving processes . At present, there have been some studies in the literature on the extraction of liquid–liquid equilibrium (LLE) from FAL with certain solvents.…”

“…The objective function fitted the interaction parameters of each model. The objective function is as follows:7…”