Vapor - Liquid equilibria in the systems ethyl lactate + ethanol and ethyl lactate + water

Dung T. Vu, Carl T. Lira, Navinchandra S. Asthana, Aspi K. Kolah, Dennis J. Miller

Research output: Contribution to journalArticle

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Abstract

A simple vapor-liquid equilibrium (VLB) apparatus has been constructed to successfully measure the VLE of binary ethyl lactate systems that have relatively high differences in volatility (P 2 sat/P 1 sat ∼ 7.0). Degassing is done in situ, reducing the experimental time considerably. Isothermal VLE of the ethyl lactate + ethanol system was measured at (40.0, 60.1, and 80.2) °C, and the isothermal VLE of the ethyl lactate + water system was measured at (40.0 and 60.0) °C. The ethyl lactate + ethanol system is slightly nonideal, and the ethyl lactate + water system forms a minimum boiling azeotrope. Isothermal data for ethanol + water were measured at 40.0 °C to demonstrate reliability of the apparatus.

LanguageEnglish (US)
Pages1220-1225
Number of pages6
JournalJournal of Chemical and Engineering Data
Volume51
Issue number4
DOIs
StatePublished - Jul 2006

Profile

Phase equilibria
Ethanol
Water
Azeotropes
Degassing
Boiling liquids
ethyl lactate

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Vapor - Liquid equilibria in the systems ethyl lactate + ethanol and ethyl lactate + water. / Vu, Dung T.; Lira, Carl T.; Asthana, Navinchandra S.; Kolah, Aspi K.; Miller, Dennis J.

In: Journal of Chemical and Engineering Data, Vol. 51, No. 4, 07.2006, p. 1220-1225.

Research output: Contribution to journalArticle

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