scholarly journals TERNARY LIQUID-LIQUID EQUILIBRIA FOR {BENZENE + CYCLOHEXANE + DIFFERENT IONIC LIQUIDS } at T= 298.2 K and P=1 atm: EFFECT OF CATION AND ANION ON SEPARATION PERFORMANCE.

2018 ◽  
Vol 1 (1) ◽  
pp. 10-24
Author(s):  
Salem A. Sakal
Keyword(s):  
Ionic Liquids ◽  
Atmospheric Pressure ◽  
Ternary Systems ◽  
Electrolyte Solutions ◽  
Separation Performance ◽  
Liquid Equilibrium ◽  
Aromatic Components ◽  
Pyridinium Cations ◽  
Lle Data ◽  
Selectivity And Capacity

Ionic liquids (ILs) based on imidazolium and pyridinium cations and differenttypes of anions containing transition metals were investigated for extraction  of benzene from cyclohexane. The Liquid-liquid equilibrium (LLE) data are presented for six ternary systems of (Cyclohexane + Benzene + an ionic Liquid) at 298.15 K and atmospheric pressure. The ILs used in these systems are [Bmim][FeCl4], [Bmim][AlCl4], [Bmim][CuCl2], [BuPy][FeCl4]), [BuPy][AlCl4], and [C6Py][FeCl4] were all prepared in the lab. The influence of cation and anion structure of ILs on the separation selectivity and capacity for aliphatic/aromatic mixtures was analyzed. The results indicate that most ILs investigated shows both higher extractive selectivity and capacity for the aromatic components for the systems studied herein, suggesting they can be used as promising extracts for the separation of aliphatic/aromatic mixtures. The LLE data were well correlated by the non-random two-liquid (NRTL) model of non-electrolyte solutions with overall ARD deviation being about 0.0001 interm of the mole fraction based activity.

Liquid–liquid equilibrium for the ternary systems of water + acetic acid +ethyl acetate at T=298.2K

2015 ◽  
Vol 16 (SE) ◽  
pp. 623-629
Author(s):  
M. Manteghian ◽  
M. Shahbazi
Keyword(s):  
Experimental Data ◽  
Acetic Acid ◽  
Ethyl Acetate ◽  
Atmospheric Pressure ◽  
Ternary Systems ◽  
Distribution Coefficients ◽  
Ternary Mixtures ◽  
Liquid Equilibrium ◽  
Karl Fischer ◽  
Lle Data

(Liquid + liquid) equilibrium (LLE) data for the ternary mixtures of {water (1) + acetic acid (2) + ethyl acetate (3)} were determined at T = 298.2 K and atmospheric pressure.  The concentration of each phase was determined by acidimetrictitration, the Karl Fischer technique. The reliability of the experimental data wasdetermined through the Othmer–Tobias and Hand plots. Distribution coefficients and separation factorswere evaluated over the immiscibility regions. The results show that ethyl acetate is satisfactory solvent for extraction of acetic acid from water.

scholarly journals Tunning CO2 Separation Performance of Ionic Liquids through Asymmetric Anions

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 413
Author(s):  
Bruna F. Soares ◽  
Daniil R. Nosov ◽  
José M. Pires ◽  
Andrey A. Tyutyunov ◽  
Elena I. Lozinskaya ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Atmospheric Pressure ◽  
Time Lag ◽  
Gas Permeation ◽  
Separation Performance ◽  
Experimental Conditions ◽  
Feed Pressure ◽  
Similar Chemical ◽  
Supported Ionic Liquid Membranes ◽  
Gas Separation Performance

This work aims to explore the gas permeation performance of two newly-designed ionic liquids, [C2mim][CF3BF3] and [C2mim][CF3SO2C(CN)2], in supported ionic liquid membranes (SILM) configuration, as another effort to provide an overall insight on the gas permeation performance of functionalized-ionic liquids with the [C2mim]+ cation. [C2mim][CF3BF3] and [C2mim][CF3SO2C(CN)2] single gas separation performance towards CO2, N2, and CH4 at T = 293 K and T = 308 K were measured using the time-lag method. Assessing the CO2 permeation results, [C2mim][CF3BF3] showed an undermined value of 710 Barrer at 293.15 K and 1 bar of feed pressure when compared to [C2mim][BF4], whereas for the [C2mim][CF3SO2C(CN)2] IL an unexpected CO2 permeability of 1095 Barrer was attained at the same experimental conditions, overcoming the results for the remaining ILs used for comparison. The prepared membranes exhibited diverse permselectivities, varying from 16.9 to 22.2 for CO2/CH4 and 37.0 to 44.4 for CO2/N2 gas pairs. The thermophysical properties of the [C2mim][CF3BF3] and [C2mim][CF3SO2C(CN)2] ILs were also determined in the range of T = 293.15 K up to T = 353.15 K at atmospheric pressure and compared with those for other ILs with the same cation and anion’s with similar chemical moieties.

A Brief Review of the Prediction of Liquid–Liquid Equilibrium of Ternary Systems Containing Ionic Liquids by the COSMO-SAC Model

2019 ◽  
Vol 48 (11-12) ◽  
pp. 1547-1563 ◽  
Author(s):  
Jingwei Yang ◽  
Zhengkun Hou ◽  
Guilin Wen ◽  
Peizhe Cui ◽  
Yinglong Wang ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Ternary Systems ◽  
Liquid Equilibrium

Liquid–liquid equilibria of ternary systems of 1-hexene/hexane and extraction solvents

2016 ◽  
Vol 0 (0) ◽  
Author(s):  
Lin Zhu ◽  
Fang-Fang Li ◽  
Zhi-Gang Lei ◽  
Ji-Qin Zhu
Keyword(s):  
Molecular Structure ◽  
Raw Materials ◽  
Ternary Systems ◽  
Liquid Equilibrium ◽  
Equilibrium Data ◽  
Energy Consuming ◽  
C And N ◽  
Extraction Solvents ◽  
C 30 ◽  
Lle Data

AbstractOlefins and paraffins are important basic chemical raw materials with so similar molecular structure and volatility that their separation is a difficult and energy-consuming process. Liquid- liquid equilibrium (LLE) data were determined for ternary systems of: 1-hexene + hexane + solvent at 25°C, 30°C, and 35°C, and N-formylmorpholine (NFM), N-methyl-2-pyrrolidone (NMP), γ-butyrolactone (GBL), and 1-methylimidazole (1-MEI) as the solvents studied. Liquid-liquid equilibrium data for each system were correlated to the NRTL (Non-Random Two Liquid) equation and the interaction parameters presented. The calculated results agree well with the experimental data.

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