Liquid−Liquid Equilibrium of Ternary Systems of Cyclohexane + (Benzene, + Toluene, + Ethylbenzene, or +o-Xylene) + 4-Methyl-N-butyl Pyridinium Tetrafluoroborate Ionic Liquid at 303.15 K

2008 ◽  
Vol 53 (8) ◽  
pp. 1708-1712 ◽  
Author(s):  
Samir I. Abu-Eishah ◽  
Ali M. Dowaidar
Keyword(s):  
Ionic Liquid ◽  
Ternary Systems ◽  
Liquid Equilibrium ◽  
Benzene Toluene

Vapour-liquid equilibrium at low pressures from the back equation of state. II. Ternary systems

1984 ◽  
Vol 49 (5) ◽  
pp. 1240-1246
Author(s):  
Tomáš Boublík
Keyword(s):  
Experimental Data ◽  
Equation Of State ◽  
Ternary Systems ◽  
Liquid Equilibrium ◽  
Pure Compounds ◽  
Benzene Toluene ◽  
Excess Thermodynamic Functions ◽  
Low Pressures

Ternary equilibrium diagrams in the n-hexane-cyclohexane-benzene system at temperature 298.15 K and n-hexane-benzene-toluene system at pressure 101.325 kPa were determined from the BACK equation of state. In the course of the determination of excess thermodynamic functions of mixtures the values of the BACK equation parameters for pure compounds and binary interactions parameters, ki,j, adjusted to GE and HE of the corresponding binaries were employed. The comparison of theoretical and experimental data shows very good quality of the prediction of the equilibrium behaviour of polycomponent systems from the BACK equation of state.

Liquid–Liquid Equilibrium Data for Ternary Systems Containing Alkanes (n-Pentane, n-Hexane, n-Heptane, and n-Octane) + Alcohol (Methanol and Ethanol) + Protic Ionic Liquid (2-HEAF)

2019 ◽  
Vol 64 (12) ◽  
pp. 5167-5173
Author(s):  
Regiane Silva Pinheiro ◽  
Francisca Maria Rodrigues Mesquita ◽  
Matheus Salmito Rodrigues Ponte ◽  
Laís Coelho Lopes ◽  
Filipe Xavier Feitosa ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ternary Systems ◽  
Liquid Equilibrium ◽  
Protic Ionic Liquid ◽  
Equilibrium Data

Solid-Liquid Equilibrium in the Systems with an Ionic Liquid

2008 ◽  
Vol 73 (5) ◽  
pp. 657-664 ◽  
Author(s):  
Zuzana Sedláková ◽  
Hélène Sauton ◽  
Vladimír Hynek ◽  
Ivona Malijevská
Keyword(s):  
Ionic Liquid ◽  
Acetic Acid ◽  
Binary System ◽  
Propionic Acid ◽  
Solid Phase ◽  
Ternary Systems ◽  
Liquid Equilibrium ◽  
Solid Compound ◽  
Active Interest ◽  
Solid Liquid

An active interest in ionic liquids has grown over the last years. This relatively new class of solvents appears to be potentially useful as a "greener" alternative to volatile organic compounds. This work was aimed at studying the effect of addition of the ionic liquid 1-butyl-3-methylimidazolium chloride to two systems (acetic acid (1)-formamide (2) and propionic acid (1)-formamide (2)) on formation of a compound in the solid phase. In previous work, the presence of a solid compound with a formula (CH3COOH)2·HCONH2 was investigated in the binary system acetic acid (1)-formamide (2) and a stable solid compound with a different formula CH3CH2COOH·(HCONH2)2 was found in the binary system propionic acid (1)-formamide (2). In both cases the compound formation is attributed to a strong cross-association (O···H···N). Solid-liquid equilibrium of the systems measured in this work was determined from time-temperature warming curves. In both measured ternary systems with a small addition of the ionic liquid 1-butyl-3-methylimidazolium chloride (i.e. the systems acetic acid (1)-formamide (2)-1-butyl-3-methylimidazolium chloride (3) and propionic acid (1)-formamide (2)-1-butyl-3-methylimidazolium chloride (3)) the above mentioned stable solid compounds are formed and the corresponding melting temperature of these compounds decreased. Dissociation parameters were modelled thermodynamically for solid adducts.

Liquid-liquid equilibrium in binary glycols-toluene and glycols-xylene systems

1982 ◽  
Vol 47 (6) ◽  
pp. 1686-1694 ◽  
Author(s):  
Lumír Mandík ◽  
František Lešek
Keyword(s):  
Atmospheric Pressure ◽  
Binary Systems ◽  
Liquid Equilibrium ◽  
Benzene Toluene

Liquid-liquid equilibria were determined in the following binary systems: 1,2-ethandiol/toluene, 1,2-ethandiol/xylene, 1,2-propandiol/toluene, 1,2-propandiol/xylene, 1,4-butandiol/toluene, 1,4-butandiol/xylene, 1,3-butandiol/toluene, 1,3-butandiol/xylene, 1,3-butandiol/p-xylene, 2,2'-dioxydiethanol/toluene, 2,2'-dioxydiethanol/xylene. The solubility of 2,2-dimethyl-1,3-propandiol in benzene, toluene and xylene was also measured. Critical solubility temperatures at atmospheric pressure were determined for systems containing 1,2-propandiol and 1,3-butandiol.

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