Extraction of propylbenzene from its mixtures with heptadecane using 4-methyl-N-butylpyridinium tetrafluoroborate

Measurement and Correlation of Liquid–Liquid Equilibria for Extracting Isopropanol from Cyclohexane with Different Solvents

“…The variation of S with the mass concentration of isopropanol in the raffinate phase is plotted in Figure . It should be noted that the S values decrease with the increase in isopropanol concentration in the raffinate phase, which is attributed to the two-phase region shrinking as the isopropanol content increased, implying that the extraction ability of the investigated extractants diminished. , Additionally, the ternary system with 1,4-BDO as the extractant had a higher S value than the other three systems, revealing that 1,4-BDO is most suitable for the separation of isopropanol from cyclohexane.…”

“…It should be noted that the S values decrease with the increase in isopropanol concentration in the raffinate phase, which is attributed to the two-phase region shrinking as the isopropanol content increased, implying that the extraction ability of the investigated extractants diminished. 26,27 Additionally, the ternary system with 1,4-BDO as Standard uncertainties u are u(T) = 0.1 K, u(w 1 ) = 0.0017, u(w 2 ) = 0.0010, and u(w 3 ) = 0.0016. Standard uncertainties u are u(T) = 0.1 K, u(w 1 ) = 0.0024, u(w 2 ) = 0.0005, and u(w 3 ) = 0.0024. the extractant had a higher S value than the other three systems, revealing that 1,4-BDO is most suitable for the separation of isopropanol from cyclohexane.…”

Evaluation of [bmim][PF6] as an ionic solvent for the extraction of propylbenzene from aliphatic compounds

“…Currently, there are few data published for {[bmim][PF 6 ] + aromatic + n-alkane (C 5 -C 9 )} and hardly any for systems containing carbon number greater than 9 for the aliphatic and/or aromatic compounds [10,11]. This paper is a continuation of our study on liquid-liquid phase equlibria for de-aromatization of Kuwait middle distilled fraction [12][13][14]. Our interest in IL is to provide experimental new LLE data, and to examine the effect of n-alkane chain length, temperature and solvent to feed ratio upon solubility, the per cent removal of aromatic, the distribution ratio (K), and the selectivity (S) for two systems, viz.…”

Effect of Solvent Cation Alkyl-Chain Length on the Separation of Butylbenzene from n-Tetradecane Using Hexafluorophosphate-Based Ionic Liquids at (313.15 and 333.15) K and 101.3 kPa

“…Ionic liquids and paraffins have very low mutual solubility, and most ionic liquids are insoluble in paraffin-rich phases with paraffins > C 10 , producing a ready raffinate product without wasting any solvent. − The solubility of paraffin in the ionic-rich phase is also very low, reducing the cost of solvent regeneration by simple flash distillation or stripping . Ionic liquids are nonvolatile, which makes them environmentally attractive alternatives to conventional solvents that contaminate the atmosphere. − They also can be produced in a variety of anion–cation combinations, which allows optimization of the separation process. − …”