Liquid-Liquid Equilibria for the Ternary and Quaternary Systems of Water + Trimethylolpropane + (2-Ethylhexan-1-ol/Octan-1-ol) + Formaldehyde at 298.15 K

Sunjae Lee, Jaehoon Choi, Kwang Ho Song

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Ternary and quaternary liquid-liquid equilibria of three solutions (water + trimethylolpropane (TMP) + 2-ethylhexanol, water + TMP + octan-1-ol, and water + TMP + 2-ethylhexanol + formaldehyde) were studied at 298.15 K under atmospheric pressure. The consistency of the measured tie-line data was evaluated using the Othmer-Tobias, Bachman, and Hand equations. The properties of solvents, such as distribution constants, separation factors, and insolubilities, were examined in the ternary and quaternary liquid-liquid equilibrium systems. NRTL and UNIQUAC models were used to regress the ternary and quaternary systems and calculate binary interaction parameters. Finally, a comparison of experimental and calculated data, using the NRTL and UNIQUAC models, was performed.

Original languageEnglish
Pages (from-to)5295-5301
Number of pages7
JournalJournal of Chemical and Engineering Data
Issue number12
Publication statusPublished - 2019 Dec 12


ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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