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

1979 ◽  
Vol 44 (12) ◽  
pp. 3509-3514 ◽  
Author(s):  
Jan Linek ◽  
Jiřina Klimánková
Keyword(s):  
Experimental Data ◽  
Order Equation ◽  
Isobutyl Alcohol ◽  
Liquid Equilibrium ◽  
System A ◽  
Equilibrium Data ◽  
Alcohol System

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.

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

1983 ◽  
Vol 48 (9) ◽  
pp. 2446-2453 ◽  
Author(s):  
Jan Linek
Keyword(s):  
Experimental Data ◽  
Boiling Point ◽  
Butyl Alcohol ◽  
Correlation Equations ◽  
Wilson Equation ◽  
Liquid Equilibrium ◽  
Raoult’S Law ◽  
System A ◽  
Equilibrium Data ◽  
Alcohol System

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.

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
Keyword(s):  
Experimental Data ◽  
Boiling Point ◽  
Butyl Alcohol ◽  
Correlation Equations ◽  
Wilson Equation ◽  
Liquid Equilibrium ◽  
System A ◽  
Equilibrium Data ◽  
Alcohol System ◽  
Kister Equation

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.

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

1983 ◽  
Vol 48 (6) ◽  
pp. 1669-1675
Author(s):  
Jan Linek ◽  
Svatoslava Bernatová
Keyword(s):  
Experimental Data ◽  
Butyl Alcohol ◽  
Correlation Equations ◽  
Wilson Equation ◽  
Liquid Equilibrium ◽  
Tert Butyl ◽  
System A ◽  
Tert Butyl Alcohol ◽  
Equilibrium Data ◽  
Alcohol System

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.

Vapour-liquid equilibrium in the isobutyl formate-isobutyl alcohol and n-butyl formate-isobutyl alcohol systems at atmospheric pressure

1979 ◽  
Vol 44 (12) ◽  
pp. 3501-3508 ◽  
Author(s):  
Jan Linek
Keyword(s):  
Experimental Data ◽  
Fourth Order ◽  
Atmospheric Pressure ◽  
Isobutyl Alcohol ◽  
Liquid Equilibrium ◽  
The Third

Isobaric vapour-liquid equilibria in the isobutyl formate-isobutyl alcohol and n-butyl formate-isobutyl alcohol systems have been measured at atmospheric pressure. A modified circulation still of the Gillespie type has been used for the measurements. The experimental data have been correlated by means of the third- and fourth-order Margules equations.

Parameters of the Bender Equation of State for Chloro Derivatives of Methane and Chlorobenzene

2001 ◽  
Vol 66 (6) ◽  
pp. 833-854 ◽  
Author(s):  
Ivan Cibulka ◽  
Lubomír Hnědkovský ◽  
Květoslav Růžička
Keyword(s):  
Experimental Data ◽  
Equation Of State ◽  
Virial Coefficient ◽  
Second Virial Coefficient ◽  
Virial Coefficients ◽  
Liquid Equilibrium ◽  
Second Virial Coefficients ◽  
Equilibrium Data ◽  
State Behaviour ◽  
Derivatives Of

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.

Isobaric Vapor-Liquid Equilibria of Hexamethyl Disiloxane + Ethyl Acetate System at Normal Pressure

2011 ◽  
Vol 396-398 ◽  
pp. 968-972
Author(s):  
Wen Lin Zhang ◽  
Nan Meng ◽  
Ru Yi Sun ◽  
Chun Li Li
Keyword(s):  
Experimental Data ◽  
Ethyl Acetate ◽  
Normal Pressure ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Equilibrium Data ◽  
Vle Data ◽  
Vapor Liquid Equilibria ◽  
Ethyl Acetate System ◽  
Vapor Liquid

Vapor-liquid equilibrium data of hexamethyl disiloxane + ethyl acetate system at 101.3kPa were measured by using double circulating vapor-liquid equilibrium still. The thermodynamic consistency of the VLE data was examined by Herrington method. Experimental data was correlated by NRTL and UNIQUAC parameter models. Both of the models satisfactorily correlated with the VLE data. The result showed that the NRTL model was the most suitable one to represent experimental data satisfactorily and the system had a minimum temperature azeotrope at 350.31 K and the mole azeotropic composition was 0.0330.

Vapour-liquid equilibrium in tetrachloromethane-isobutyl alcohol system

1979 ◽  
Vol 44 (7) ◽  
pp. 2006-2008 ◽  
Author(s):  
Alagandala Rajiah ◽  
Ivan Wichterle
Keyword(s):  
Isobutyl Alcohol ◽  
Liquid Equilibrium ◽  
Alcohol System

The isobaric vapour-liquid equilibrium in the tetrachloromethane-isobutyl alcohol was measured by a recirculation method at 101.325 kPa. The data were correlated by the NRTL and the Margules equations.

Influence of temperature on the liquid-to-liquid extraction of ethanol from (water + ethanol + 1,2-dichloroethane)

1992 ◽  
Vol 70 (8) ◽  
pp. 2310-2313 ◽  
Author(s):  
Horacio N. Sólimo ◽  
José L. Zurita
Keyword(s):  
Experimental Data ◽  
Conjugate Points ◽  
Liquid Equilibrium ◽  
Experimental Conditions ◽  
Influence Of Temperature ◽  
Equilibrium Data ◽  
Tie Lines ◽  
Influence Of Temperature On ◽  
Tie Line ◽  
System Water

To evaluate the influence of temperature on the extraction of ethanol from aqueous solutions with 1,2-dichloroethane, liquid–liquid equilibrium data for the system water + ethanol + 1,2-dichloroethane were obtained at 298.15, 308.15, and 318.15 K. The binodal curves were determined by the cloud-point method, and conjugate points on the tie-lines were obtained by correlating the refractive index of these curves as a function of composition. The tie-line data at each temperature were satisfactorily correlated using the method of Othmer and Tobias, and the plait-point coordinates were estimated. The experimental data were also compared to values calculated by the UNIFAC group contribution method for the activity coefficients using the isoactivity conditions as restraint equations, and with the NRTL and UNIQUAC models. The UNIFAC method proved to be more accurate than the NRTL and UNIQUAC equations fitted to the experimental data. Under the experimental conditions used, ethanol extraction by 1,2-dichloroethane appears to be independent of the temperature.

Isobaric Vapor-Liquid Equilibrium for Ethyl Acetate-Isopropanol-1-Octyl-3-Methylimidazolium Tetrafluoroborate

2013 ◽  
Vol 641-642 ◽  
pp. 160-164 ◽  
Author(s):  
Xiu Min Shi ◽  
Min Wang
Keyword(s):  
Experimental Data ◽  
Ethyl Acetate ◽  
Mole Fraction ◽  
Extractive Distillation ◽  
Liquid Equilibrium ◽  
Salting Out ◽  
Vapor Liquid Equilibrium ◽  
Equilibrium Data ◽  
Extraction Agent ◽  
Vapor Liquid

Abstract: In order to study the possibility of separating ethyl acetate and isopropanol by extractive distillation with ILs as an entrainer. Isobaric vapor-liquid equilibrium data for ethyl acetate + isopropanol+1-octyl-3-methylimidazolium tetrafluoroborate ([OMIM]BF4) ternary system at 101.32 kPa were determined using a recirculating still. The results showed that the ionic liquid (IL) studied produced a notable salting-out effect, which enhanced the relative volatility of ethyl acetate to isopropanol and eliminated the azeotrope when the mole fraction of IL in the liquid phase was greater than 0.10. Therefore, [OMIM]BF4 can be used as the extraction agent of extractive distillation for ethyl acetate + isopropanol systerm, the suitable mole fraction of [OMIM]BF4 is about 20%. The experimental data were correlated with the NRTL model, the correlated results agreed well with the experimental data.

scholarly journals Experimental measurement and modelling of vapour-liquid equilibrium data for the C2F4-C3F6-s-C4F8 system

2011 ◽  
Vol 30 (1) ◽  
Author(s):  
Francois J. Conradie
Keyword(s):  
Experimental Data ◽  
Equation Of State ◽  
Binary System ◽  
Activity Coefficient ◽  
Mixing Rule ◽  
Liquid Equilibrium ◽  
Activity Coefficient Model ◽  
Equilibrium Data ◽  
Robinson Equation ◽  
Alpha Function

The vapour-liquid equilibrium data for the C2F4-C3F6-s-C4F8 system are presented. Each binary system was evaluated at three isotherms. The experimental data will be correlated to the Peng-Robinson equation of state, incorporating the Mathias-Copeman alpha function, with the Wong-Sandler mixing rule utilising the NRTL activity coefficient model.

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