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RESEARCH PRODUCT

Isobaric (vapour+liquid+liquid) equilibrium data for (di-n-propyl ether+n-propyl alcohol+water) and (diisopropyl ether+isopropyl alcohol+water) systems at 100kPa

Estela LladosaJuan B. MontónJavier De La TorreM.c. Burguet

subject

UNIQUACTernary numeral systemAnalytical chemistryIsopropyl alcoholAtomic and Molecular Physics and Opticschemistry.chemical_compoundchemistryAzeotropeNon-random two-liquid modelDiisopropyl etherOrganic chemistryIsobaric processGeneral Materials SciencePhysical and Theoretical ChemistryUNIFAC

description

Abstract Isobaric (vapour + liquid + liquid) equilibria were measured for the (di-n-propyl ether + n-propyl alcohol + water) and (diisopropyl ether + isopropyl alcohol + water) system at 100 kPa. The apparatus used for the determination of (vapour + liquid + liquid) equilibrium data was an all-glass dynamic recirculating still with an ultrasonic homogenizer couple to the boiling flask. The experimental data demonstrated the existence of a heterogeneous ternary azeotrope for both ternary systems. The (vapour + liquid + liquid) equilibria data were found to be thermodynamically consistent for both systems. The experimental data were compared with the estimation using UNIQUAC and NRTL models and the prediction of UNIFAC model.

yearjournalcountryeditionlanguage
2008-05-01The Journal of Chemical Thermodynamics
https://doi.org/10.1016/j.jct.2008.01.002