(Liquid+liquid) equilibria of the quaternary system methanol+isooctane+cyclohexane+benzene at T=303.15K

Comparison of Ionic Liquids to Conventional Organic Solvents for Extraction of Aromatics from Aliphatics

“…Moreover, multicomponent systems with more than three constituents have been published. Those publications focus on the addition of a modifier to the extraction solvent or the use of two typical solvents ,,,,,, for the extraction of mixed aromatics from a single or multiple aliphatics. ,,,− …”

(Liquid+liquid) equilibria for mixtures of (ethylene glycol+benzene+cyclohexane) at temperatures (298.15, 308.15, and 318.15)K

“…Therefore, it is usual to measure the phase equilibrium properties of the liquid systems [3]. In this line of research, the theoretical and experimental studies of (liquid + liquid) equilibrium (LLE) for different systems are presented in the literature [2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Considering the important role of a suitable non-toxic, inexpensive, and easily recoverable solvent in the extraction process operations, research into finding new solvents, in (liquid-liquid) extraction is an ongoing investigation [4].…”

“…(Liquid + liquid) equilibrium (LLE) data for a number of ternary mixtures containing solvent (such as ethylene glycol), aromatic, and aliphatic hydrocarbon (such as cyclohexane) have been published in the literature: (ethylene glycol + toluene + n-octane) at three temperatures (295.15, 301.15, and 307.15) K [4]; (cyclohexane + benzene + N-methyl formamide) and (cyclohexene + benzene + N-methyl formamide) at temperatures of (288.15, 298.15, and 308.15) K [5]; (ethylene carbonate + benzene + cyclohexane) at T = (303.15 and 313.15) K and (ethylene carbonate + BTX + cyclohexane) at T = 313.15 K [6]; (methanol + isooctane + cyclohexane) and (methanol + isooctane + cyclohexane + benzene) at T = 303.15 K [7]; (cyclohexane + benzene + sulfolane), (1-hexene + benzene + sulfolane), (hexane + benzene + sulfolane), and (heptane + toluene + sulfolane) at T = (298. 15, 323.15, 348.15, and 373) K [8]; (heptanes + o-xylene + diethylene glycol) over the temperature range of (288.15 to 318.15) K [9]; ternary and quaternary systems including (cyclohexane + 1-heptene + benzene + toluene + sulfolane) at T = 298.15 K [10]; (cyclohexane + benzene + dimethylformamide + ethylene glycol) [11]; (cyclohexane + toluene + sulfolane), and (hexane + toluene + sulfolane) ternary systems [12]; (benzene + cyclohexane + N-methylimidazole, or Nethylimidazole, or N-methylimidazolium dibutylphosphate) at T = 298.2 K and atmospheric pressure [13]; three quaternary systems (nonane + undecane + benzene + sulfolane), (nonane + undecane + toluene + sulfolane), and (nonane + undecane + m-xylene + [14]; (heptane + N-formylmorpholine (NFM) + aromatic hydrocarbons (benzene, toluene, and xylene)) over the temperature range of (298 to 353) K [15].…”

(Liquid+liquid) equilibria of methanol+isooctane+methylcyclohexane+ethylbenzene quaternary system at T=303.15K

“…Therefore, this is the reason for which we are studying the phase equilibrium of systems containing hydrocarbons (benzene, isooctane, or cyclohexane) and oxygenated compounds (methanol, ethanol, or methyl tert-butyl ether) [1][2][3][4][5][6][7][8].…”

“…However, methanol presents partial miscibility with aliphatic hydrocarbons, not so with aromatic ones. Therefore, it is of great importance to study systems composed by methanol and representative hydrocarbons of gasoline, establishing the concentration ranges of hydrocarbons and methanol in which the two-phase region does not exist [7,8].…”