Liquid-Liquid Equilibria for the Ternary Systems of Water + Butane-2,3-diol + 2-Methylbutan-1-ol, 2-Ethylbutan-1-ol, and 4-Methylpentan-2-ol at 298.15 and 308.15 K

Sang Tae Park, Jaehoon Choe, Kwang Ho Song

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    2 Citations (Scopus)

    Abstract

    The liquid-liquid equilibria of ternary systems composed of water, butane-2,3-diol, and alcohols such as 2-methylbutan-1-ol, 2-ethylbutan-1-ol, and 4-methylpentan-2-ol were studied at two different temperatures (298.15 and 308.15 K). The experimental tie-line data were compared with the compositional data predicted by the NRTL and UNIQUAC models. The distribution ratio and separation factors were calculated to evaluate the extraction efficiencies. Among the three different branched-chain alcohols selected as extractants, 2-methylbutan-1-ol, which has the shortest chain and branch, provided the highest distribution ratios of 0.55-0.67. The root-mean-square deviation (RMSD) values were calculated for each ternary system, and the average RMSD value was 0.0058, which assures good reliability.

    Original languageEnglish
    Pages (from-to)1581-1586
    Number of pages6
    JournalJournal of Chemical and Engineering Data
    Volume62
    Issue number5
    DOIs
    Publication statusPublished - 2017 May 11

    Bibliographical note

    Funding Information:
    This work has been supported by a Korea University grant.

    Publisher Copyright:
    © 2017 American Chemical Society.

    ASJC Scopus subject areas

    • General Chemistry
    • General Chemical Engineering

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