Artículos de revistas
Isobaric vapor liquid equilibrium (VLE) data of the systems n-butanol plus butyric acid and n-butanol plus acetic acid
Registro en:
Journal Of Chemical And Engineering Data. Amer Chemical Soc, v. 46, n. 1, n. 120, n. 124, 2001.
0021-9568
WOS:000166498100021
10.1021/je000033u
Autor
Munoz, LAL
Krahenbuhl, MA
Institución
Resumen
Vapor liquid equilibria (VLE) of the binary systems n-butanal + butyric acid and n-butanol + acetic acid were determined at two pressures, 26.65 and 53.33 kPa. The equipment used was a flow ebulliometer, which is ideal for reactive systems . The quality of the measured P-T-x-y data was verified by applying the thermodynamic consistency test of Van Ness and Fredenslund. The binary interaction parameters for the determination of the liquid-phase activity coefficients, represented by the models Wilson, UNIQUAC, and NRTL, were adjusted by using the maximum likelihood method. The nonideality of the vapor phase was considered by using a chemical theory with the correlation of Hayden and O'Connell for the calculation of the second virial coefficient and the prediction of the chemical equilibrium dimerization constant. 46 1 120 124