Gomis Yagües, Vicente, Ruiz Beviá, Francisco, Asensi Steegmann, Juan Carlos
The application of ultrasound in the determination of isobaric vapour–liquid–liquid equilibrium data
GOMIS YAGÜES, Vicente; RUIZ BEVIÁ, Francisco; ASENSI STEEGMANN, Juan Carlos. “The application of ultrasound in the determination of isobaric vapour–liquid–liquid equilibrium data”. Fluid Phase Equilibria. Vol. 172, Issue 2 (5 July 2000). ISSN 0378-3812, pp. 245-259
URI: http://hdl.handle.net/10045/1897
DOI: 10.1016/S0378-3812(00)00380-0
ISSN: 0378-3812
Abstract: 
The application of ultrasound is shown to be an excellent method to transform the dynamic instruments for
the determination of vapour–liquid equilibrium (VLE) data into useful equipment for the determination of isobaric
vapour–liquid–liquid equilibrium (VLLE) data. After a reviewof the fewexperimental isobaric VLLE data published
in literature and the analysis of the reasons why conventional VLE instruments are not useful for systems of
limited miscibility in the liquid phase, the positive effects of applying ultrasound are shown. The best place and
position of the ultrasonic homogenizer in the instrument is discussed. Finally, experimental VLLE data obtained
with the resultant instrument are presented for five ternary systems at 101.3 kPa: water+ethanol+ethyl acetate,
water+ethanol+1-butanol, water+2-propanone+2-butanone, water+ethanol+diethylether and water+1-butanol+n-butylacetate.
Keywords:Vapour–liquid–liquid equilibrium, Determination, Apparatus, Ultrasound
Elsevier
info:eu-repo/semantics/article