Isobaric vapor-liquid equilibrium system

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)...

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... 

Table I. Isobaric Vapor-Liquid Equilibrium Data for the Potassium Iodide—Ethanol—Water System at x — 0.309 (758 d= 3 torr)...

Dominguez, M. Martin, S. Artigas, H. Lopez, M. C. Royo, F. M. Isobaric vapor-liquid equilibrium data for the binary mixtures (2-butanol n-hexane) and (2-butanol + 1-butylamine) and for the ternary system (2-butanol -1- n-hexane -1-1-butylamine) at 101.3 kPa J. Chem. Eng. Data 2002,47, 405-410... 

Cabezas, J. L. Beltran, S. Coca, J. Isobaric vapor-liquid equilibrium data for the binary systems 1,2-dimethoxyethane +... 

Ortega, J. Susial, P. De Alfonso, C. Isobaric vapor-liquid equilibrium of methyl butanoate with ethanol and 1-propanol binary systems J. Chem. Eng. Data 1990,35, 216-219... 

Munoz, L. A. L. Kraehenbuehl, M. A. Isobaric vapor liquid equilibrium (VLE) data of the systems n-butanoi -1- butyric add... 

Ramkumar, D. H. S. Odak, S. V. Kudchadker, A. P. Mixture properties of the water +. gamma.-butyr-olactone + tetrahydrofuran system. 3. Isobaric vapor-liquid equilibrium of water -1-. gamma.butyrolactone and tetrahydrofuran -1-.gamma.-butyrolactone at 1.013 bar. J. Chem. Eng. Data 1989, 34, 466-467. 

Palczewska-Tulinska, M. Wyrzykowska-Stankiewicz, D. Szafranski, A. M. Isobaric vapor-liquid equilibrium in methanol- and benzene-morpholine systems. Fluid Phase Equihb. 1994, 100, 241-252. 

Tang, J. Hou, Y. Measurement and study of isobaric vapor-liquid equilibrium of diehloroethane - tetra-chloroethylene binary system. Shiyou Huagong 1989, 18, 843-846. 

---