Vapor-Liquid Equilibria of a Minute Amount of Furfural in Water-Methanol-Ethanol System.

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  • Ikari Atsushi
    Department of Applied Chemistry and Chemical Engineering, Kagoshima University
  • Hatate Yasuo
    Department of Applied Chemistry and Chemical Engineering, Kagoshima University
  • Uemura Yoshimitsu
    Department of Applied Chemistry and Chemical Engineering, Kagoshima University

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  • 水‐メタノール‐エタノール系中の微量のフルフラールの気液平衡
  • ミズ メタノール エタノールケイチュウ ノ ビリョウ ノ フルフラール ノ キ

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Abstract

Vapor-liquid equilibria of a water-methanol-ethanol system containing a minute amount of furfural were measured at atmospheric pressure by use of an Othmer-type still.<BR>The experimental results are represented by four triangular diagrams against the liquid compositions of the major components (water, methanol and ethanol), in which three diagrams show the vapor composition of the major components, respectively, and one diagram shows the equilibrium ratio of the trace component (furfural).<BR>The curved surface of the equilibrium ratio of the trace component exhibits a gentle downward slope in most areas, but shows a half-saddle face in the neighborhood of the water-ethanol side.

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