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    STUDIA CHEMIA - Issue no. 2 / 2012  
         
  Article:   ANALYSIS IN TERMS OF THE MODIFIED UNIFAC (DORTMUND) GROUP CONTRIBUTION MODEL OF THE EXPERIMENTAL VAPOR - LIQUID EQUILIBRIUM DATA IN BINARY AND TERNARY SYSTEMS CONTAINING (1R,4S)-(+)-FENCHONE, METHYL CHAVICOL AND TRANS-ANETHOLE.

Authors:  . 		 
       
         
  Abstract:  The experimental vapor-liquid equilibrium data (VLE) in binary and ternary systems which contain (1R,4S)-(+)-fenchone, methyl chavicol and trans-anethole, reported in previous papers, were used to check the predictive capability of the Modified UNIFAC (Dortmund) group contribution model in mixtures containing terpenoids. A comparison with the experimental VLE data was done. The Mod. UNIFAC (Do) group contribution model predicts satisfactory VLE data in all the binary and ternary systems but inadequately the values of the excess Gibbs energy. The Modified UNIFAC (Dortmund) group contribution model is the most useful model to predicts vapor-liquid equilibrium data.

Keywords: Mod. UNIFAC (Dortmund), Vapor - liquid equilibria, Terpenoids, excess Gibbs energy. 		 
         
     
         
         
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