Isothermal and isobaric vapour-liquid equilibrium data in the tetrachloromethane-n-butyl alcohol system

1983 ◽  
Vol 48 (10) ◽  
pp. 2879-2887 ◽  
Author(s):  
Jan Linek

Isothermal vapour-liquid equilibrium data at 65, 73 and 80 °C and isobaric ones at 101.3 kPa were measured in the tetrachloromethane-n-butyl alcohol system. A modified circulation still of the Gilespie type was used for the measurements. Under the conditions of measurements, the system exhibits positive deviations from Raoult's law and minimum boiling-point azeotropes. The experimental data were fitted to a number of correlation equations. The best correlation was reached with the Wilson equation but the regression failed in some cases. Therefore the results for the 5th order Redlich-Kister equation are presented.

1983 ◽  
Vol 48 (9) ◽  
pp. 2446-2453 ◽  
Author(s):  
Jan Linek

Isothermal vapour-liquid equilibrium data at 65, 73 and 80 °C and isobaric ones at 101.3 kPa were measured in the tetrachloromethane-sec-butyl alcohol system. A modified circulation still of the Gillespie type was used for the measurements. Under the conditions of measurement, the system exhibits positive deviations from Raoult's law and minimum boiling-point azeotropes. The experimental data were fitted to a number of correlation equations, the most suitable being the Wilson equation.


1983 ◽  
Vol 48 (6) ◽  
pp. 1669-1675
Author(s):  
Jan Linek ◽  
Svatoslava Bernatová

Isothermal vapour-liquid equilibrium data at 55, 63 and 70 °C and isobaric ones at 101.3 kPa were measured in the tetrachloromethane-tert-butyl alcohol system. A modified circulation still of the Gillespie type was used for the measurements. Under the conditions of measurement, the system exhibits positive deviations from Raoult's law and minimum boiling-point azeotropes. The experimental data were fitted to a number of correlation equations, the most suitable being the Wilson equation.


1979 ◽  
Vol 44 (12) ◽  
pp. 3509-3514 ◽  
Author(s):  
Jan Linek ◽  
Jiřina Klimánková

Isothermal vapour-liquid equilibrium data at 65, 75 and 83°C and isobaric ones at 101.325 kPa have been measured in the tetrachloromethane-isobutyl alcohol system. A modified circulation still of the Gillespie type has been used for the measurements. The experimental data have been correlated by the Margules 3rd and 4th order equation.


2000 ◽  
Vol 65 (12) ◽  
pp. 877-889
Author(s):  
Jelena Jelic ◽  
Aleksandar Tasic ◽  
Bojan Djordjevic ◽  
Slobodan Serbanovic

The Kojima-Moon-Ochi (KMO) thermodynamic consistency test of vapour-liquid equilibrium (VLE) measurements for 32 isothermal data sets of binary systems of various complexity was applied using two fitting equations: the Redlich-Kister equation and the Sum of Symmetrical Functions. It was shown that the enhanced reliability of the fitting of the experimental data can change the conclusions drawn on their thermodynamic consistency in those cases of VLE data sets that are estimated to be near the border of consistency.


2001 ◽  
Vol 66 (6) ◽  
pp. 833-854 ◽  
Author(s):  
Ivan Cibulka ◽  
Lubomír Hnědkovský ◽  
Květoslav Růžička

Values of adjustable parameters of the Bender equation of state evaluated for chloromethane, dichloromethane, trichloromethane, tetrachloromethane, and chlorobenzene from published experimental data are presented. Experimental data employed in the evaluation included the data on state behaviour (p-ρ-T) of fluid phases, vapour-liquid equilibrium data (saturated vapour pressures and orthobaric densities), second virial coefficients, and the coordinates of the gas-liquid critical point. The description of second virial coefficient by the equation of state is examined.


2008 ◽  
Vol 73 (1) ◽  
pp. 73-85 ◽  
Author(s):  
Oana Ciocirlan ◽  
Olga Iulian

This paper reports the experimental results of isothermal vapor-liquid equilibrium data between 303.15 and 333.15 K, and densities, viscosities, refractive indices from 298.15 to 323.15 K of the dimethyl sulfoxide + 1,4-dime?thylbenzene system over the entire range of mixture composition. The obtained PTX data were correlated by the Wilson and NRTL models and estimated by the UNIFAC model. The excess Gibbs energy and activity coefficients were calculated and compared with others excess properties. Excess molar volumes, viscosity deviations and deviations in refractivity were calculated from the experimental data; all the computed quantities were fitted to the Redlich-Kister equation. The resulting excess functions were interpreted in terms of structure and interactions.


1975 ◽  
Vol 8 (1) ◽  
pp. 71-72 ◽  
Author(s):  
ISAMU NAGATA ◽  
TOSHIRO YAMADA ◽  
KATSUJI GOTOH ◽  
KENJI KAZUMA

1989 ◽  
Vol 54 (3) ◽  
pp. 586-601 ◽  
Author(s):  
Josef P. Novák ◽  
Jaroslav Matouš ◽  
Květuše Říčná ◽  
Vladimír Kubíček

Liquid-liquid equilibrium data in the water-ethanol-toluene system were correlated by the superposition of the Wilson and Redlich-Kister equations with a ternary term. The correlation of both homogeneous binary systems was taken from the literature. The ternary liquid-liquid equilibrium data were at all temperatures satisfactorily described on using only three ternary parameters determined from the equilibrium data at 50 °C. The parameters obtained by the correlation yield also a good estimate of boiling point and composition of homogeneous azeotropic mixture.


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