Vapor-liquid equilibrium isobaric

Aucejo, A., Loras, S., Munoz, R., Reich, R., and Segura, H. Isobaric vapor-liquid equilibrium in the systems 2-methylpentane-r methyl 1,1-dimethylethyl ether,-r ethyl 1,1-dimethylethyl ether, and-r methyl l,l-dimethylpropylether,7 Chem. Eng. Data, 43(6) 973-977, 1998. 

The data in Tables I-XVI (see Appendix for all tables) show the isobaric vapor-liquid equilibrium results at the boiling point for potassium, ammonium, tetramethylammonium, tetraethylammonium, tetra-n-propylammonium, and tetra-n-butylammonium bromides in various ethanol-water mixtures at fixed liquid composition ratios. The temperature, t, is the boiling temperature for all solutions in these tables. In all cases, the ethanol-water composition was held constant between 0.20 and 0.35 mole fraction ethanol since it is in this range that the most dramatic salt effects on vapor-liquid equilibrium in this particular system should be observed. That is, previous data (12-15,38) have demonstrated that a maximum displacement of the vapor-liquid equilibrium curve by salts frequently occurs in this region. In the results presented here, it should be noted that Equation 1 has been modified to... 

Table I. Isobaric Vapor—Liquid Equilibrium Data for the Potassium Bromide—Ethanol—Water System at x = 0.206 0.001 (760 5 Torr)...

Table 4 Isobaric Vapor-Liquid Equilibrium results for Methanol-Water...

FIG. 13-4 Isobaric vapor-liquid equilibrium curves for benzene-toluene. Brian, Staged Cascades in Chemical Processing, Frentice-Hall, Englewood Cliff , N.J., 1972.)... 

Prediction of Isobaric Vapor-Liquid Equilibrium Data for Mixtures of Water and Simple Alcohols... 

The Non-Random, Two Liquid Equation was used in an attempt to develop a method for predicting isobaric vapor-liquid equilibrium data for multicomponent systems of water and simple alcohols—i.e., ethanol, 1-propanol, 2-methyl-l-propanol (2-butanol), and 3-methyl-l-butanol (isoamyl alcohol). Methods were developed to obtain binary equilibrium data indirectly from boiling point measurements. The binary data were used in the Non-Random, Two Liquid Equation to predict vapor-liquid equilibrium data for the ternary mixtures, water-ethanol-l-propanol, water-ethanol-2-methyl-1-propanol, and water-ethanol-3-methyl-l-butanol. Equilibrium data for these systems are reported. 

Isobaric Vapor-Liquid Equilibrium in the Acetic Acid-Acetone System... 

Isobaric vapor-liquid equilibrium data at atmospheric pressure are reported for the four systems of the present investigation in Tables I-VI. Salt concentrations are reported as mole fraction salt in the solution, while mixed-solvent compositions are given on a salt-free basis. A single fixed-liquid composition was used for potassium iodide and sodium acetate potassium acetate used three—all chosen from the region of ethanol-water composition where relative volatility is highest. In the... 

Pequemh, A., Carlos Asensi, J., Gomis V. Isobaric vapor-liquid-liquid equilibrium and vapor-liquid equilibrium for the quaternary system water-ethanol-cyclohexane -isooctane at 101.3 kPa. J. Chem. Eng. Data, 2010, 55,1227. 

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