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Liquid-Liquid Equilibria of Water+Butyric Acid+Nonanol Ternary System

S.IsmailKlrbaslara;SemaYuekselb;ErolIncea;IsmailBoza   

  1. a Istanbul University, Engineering Faculty, Chemical Engineering Department, 34320Avcilar, Istanbul, Turkey
    b Mak-Plast, Mahmutbey Tasocagl Yolu, No.7, 34560 Bagc1lar, Istanbul, Turkey
  • Received:1900-01-01 Revised:1900-01-01 Online:2004-10-28 Published:2004-10-28
  • Contact: S.IsmailKlrbaslar

水-丁酸-壬醇三相系统的液液平衡

S.IsmailKlrbaslara;SemaYuekselb;ErolIncea;IsmailBoza   

  1. a Istanbul University, Engineering Faculty, Chemical Engineering Department, 34320Avcilar, Istanbul, Turkey
    b Mak-Plast, Mahmutbey Tasocagl Yolu, No.7, 34560 Bagc1lar, Istanbul, Turkey
  • 通讯作者: S.IsmailKlrbaslar

Abstract: Liquid-liquid equilibrium (LLE) data for the water + butyric acid + nonanol system have been determined experimentally at the temperatures of 298.15K, 308.15K and 318.15 K. Tie-line compositions were correlated by Othmer-Tobias method. The universal quasichemical functional group activity coefficient (UNIFAC) and modified UNIFAC methods were used to predict the phase equilibrium in the system using the interaction parameters between CH3, CH2, COOH, OH and H2O functional groups. Distribution coefficients and separation factors were evaluated for the immiscibility region.

Key words: butyric acid, nonanol, liuquid-liquid equilibria, universal quasichemical functional group activity coefficient (UNIFAC), modified UNIFAC

摘要: Liquid-liquid equilibrium (LLE) data for the water + butyric acid + nonanol system have been determined experimentally at the temperatures of 298.15K, 308.15K and 318.15 K. Tie-line compositions were correlated by Othmer-Tobias method. The universal quasichemical functional group activity coefficient (UNIFAC) and modified UNIFAC methods were used to predict the phase equilibrium in the system using the interaction parameters between CH3, CH2, COOH, OH and H2O functional groups. Distribution coefficients and separation factors were evaluated for the immiscibility region.

关键词: UNIFAC;液液平衡;丁酸;三相;OH;CH