Liquid-Liquid Equilibrium in the Water-Methyl tert-Butyl Ether-Nitromethane-Ethylene Glycol System

1993 ◽  
Vol 58 (5) ◽  
pp. 983-995
Author(s):  
Vladimír Kubíček ◽  
Josef P. Novák ◽  
Jaroslav Matouš

The liquid-liquid equilibrium was measured at 20 °C in the title quaternary system and in the three nitromethane-containing ternary subsystems. The data were compared with those predicted by a superposition of the Wilson and Redlich-Kister equations including the ternary parameters. The agreement between the observed and calculated data is very good both for the quaternary system and for the three ternary systems.

1992 ◽  
Vol 57 (10) ◽  
pp. 2021-2041 ◽  
Author(s):  
Vladimír Kubíček ◽  
Jaroslav Matouš ◽  
Josef P. Novák

Liquid-liquid equilibria were measured at 20 °C in the W-MeOH-MTBE-EG quaternary system (W is water, MeOH is methyl alcohol, MTBE is methyl tert-butyl ether, and EG is ethylene glycol) and in the W-MeOH-MTBE, W-MTBE-EG and MeOH-MTBE-EG ternary systems. In the W-MeOH-MTBE-EG, W-MeOH-MTBE, and MeOH-MTBE-EG systems, the vapour-liquid equilibria at atmospheric pressure were also measured. The experimental data of the quaternary system were compared with those modelled by superposition of the Wilson and Redlich-Kister equations with the ternary term, whose parameters were determined based on the corresponding binary and, in some cases, ternary systems. A very good agreement was obtained for both the liquid-liquid and vapour-liquid equilibria.


1994 ◽  
Vol 72 (4) ◽  
pp. 1111-1115 ◽  
Author(s):  
Shemin Zhu ◽  
Shubao Shen ◽  
George C. Benson ◽  
Benjamin C.-Y. Lu

Calorimetric measurements of excess enthalpies are reported for the three ternary systems (1-propanol + methyl tert-butyl ether + (n-hexane, or 2,3-dimethylbutane, or cyclohexane)) at 298.15 K. Smoothing equations, fitted to the results, were used to construct constant enthalpy contours on a Roozeboom diagram for each of the systems.


1979 ◽  
Vol 44 (12) ◽  
pp. 3627-3631 ◽  
Author(s):  
Jiří Plura ◽  
Jaroslav Matouš ◽  
Josef P. Novák ◽  
Josef Šobr

Vapour-liquid equilibrium data in binary methyl tert-butyl ether-n-hexane and methyl tert-butyl ether-toluene mixtures were determined experimentally. The data were described thermodynamically by the one-constant Redlich-Kister equation.


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