Studies on Phase Equilibria at Superatmospheric Pressures for Binary Systems of Chloroform,Ethanol and Benzene

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (3): 436.

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Studies on Phase Equilibria at Superatmospheric Pressures for Binary Systems of Chloroform,Ethanol and Benzene

MA Zhong-Min¹, CHEN Geng-Hua¹, WANG Qi¹, YAN Xin-Huan¹, HAN Shi-Jun¹, YU Shu-Xian²

1. Department of Chemistry, Zhejiang University, Hangzhou, 310027;
2. Department of Chemistry, Jiangxi University, Nanchang

Received:1993-04-13 Revised:1993-12-08 Online:1994-03-24 Published:1994-03-24

Abstract

Abstract: The vapor liquid equilibrium data for chloroform-ethanol and chloroform-benzene binary systems are determined at pressures from 101.3 to 303.0 kPa with the dual circulating vapor liquid equilibrium apparatus at superatmospheric pressures.The data at normal pressure are correlated by the Wilson, NRTL, UNIQUAC equations,and those at superatmospheric pressures are predicted from the correlated energy parameters and compared with those from the experimental results.Good results are obtained.Abinary azeotrope is formed at the studied pressures for the chloroform-ethanol mixtures.Some chloride ions are generated in this mixture when the temperature is over 400 K.

Key words: Vapor liquid equilibrium at superatmospheric pressure, Hydrocarbon-alcohol systems, Chloroform, ethanol, benzene

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MA Zhong-Min, CHEN Geng-Hua, WANG Qi, YAN Xin-Huan, HAN Shi-Jun, YU Shu-Xian. Studies on Phase Equilibria at Superatmospheric Pressures for Binary Systems of Chloroform,Ethanol and Benzene[J]. Chem. J. Chinese Universities, 1994, 15(3): 436.

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Studies on Phase Equilibria at Superatmospheric Pressures for Binary Systems of Chloroform,Ethanol and Benzene

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