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Phase Equilibria for Quaternary Systems of Water + Methanol or Ethanol + Ethyl Methyl Carbonate + Octane at T = 298.15 K

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Abstract

Liquid–liquid equilibrium (LLE) data were measured at 298.15 K and atmospheric pressure for the quaternary [water + methanol + ethyl methyl carbonate (EMC) + octane] and (water + ethanol + EMC + octane) systems, and relevant ternary (water + methanol + EMC), (water + ethanol + EMC), (water + ethanol + octane) and (water + EMC + octane) systems. The modified and extended UNIQUAC activity coefficient models were employed to correlate the experimental LLE results, which were also correlated by the Othmer–Tobias equation. The separation factors were calculated from the LLE data. The extracting selectivity of methanol and ethanol from aqueous solutions using pure EMC and mixed solvent (EMC + octane) was studied.

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Funding

The authors thank the National Scientific Research Found of China (21271088) for financial support.

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Authors and Affiliations

  1. Department of Chemistry, Jinan University, Guangzhou, 510632, People’s Republic of China

    Kai Cheng, Wanxia Feng & Yao Chen

  2. Department of Food Science and Technology, Beijing Normal University Hong Kong Baptist University, Zhuhai, 519085, People’s Republic of China

    Linhuan Wang

Authors
  1. Kai Cheng
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  2. Wanxia Feng
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  3. Linhuan Wang
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  4. Yao Chen
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Correspondence to Yao Chen.

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Cheng, K., Feng, W., Wang, L. et al. Phase Equilibria for Quaternary Systems of Water + Methanol or Ethanol + Ethyl Methyl Carbonate + Octane at T = 298.15 K. J Solution Chem 46, 1337–1348 (2017). https://doi.org/10.1007/s10953-017-0641-8

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  • DOI: https://doi.org/10.1007/s10953-017-0641-8

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