摘要
氯仿、苯、正丁醇有关二元体系加压相平衡研究严新焕，陈庚华，王琦，韩世钧（浙江大学化学系杭州３１００２７）关键词烃醇体系，加压汽液平衡作者曾研究了氯仿、苯与乙醇构成的醇烃不对称体系的汽液平衡￣［１］。为了进一步研究低级醇与卤代烃、芳烃的相行为，本工作又...
In order to investigate the phase equilibrium behavior of low molecular alco-hols with halohydrocarbons and aromatics,the vapor liquid equilibrium data for chloroform-1-butanol and benzene-1-butanol binary systems were determined at pressure of 105.0,205.0 and 303.0 kPa in a dual circulating VLE apparatus. The measuring precision of tem- perature,pressure and composition were 0.02 K,0.1 kPa and 0.001 mole fraction respec- tively,All the experimental vapor liquid equilibrium data were thermodynamically consistentaccording to the Herington method.The data obtained at three pressures were unitedly cor-related by the Wilson activity coefficient model for liquid and B-truncated virial equation forvapor phase. The relationship of the Wilson’s energy parameters with pressure are deter- mined for each system. The calculated results of vapor-liquid equilibria were in good agree-ment with the experimental ones. The investigation indicatcd that no azeotrope was foundfor chloroform-1-butanol system,but benzene-1-butanol system showed a minimumboiling azeotrope at 303.0 kPa. In the presence of alcohol,chloroform might decomposewhen the temperature is higher than 400 K. Some chlorine was generated in chloroform-1 -butanol mixtures and can be detected by AgNO_3 reagent.It might be caused by nucleophilicsubstitution reaction on saturated carbon atom of chloroform. So the experimental investiga-tion could not be performed for chloroform-alcohol containing systems at higher pressure.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1994年第1期98-102,共5页
Journal of Fuel Chemistry and Technology
基金
浙江大学科研基金
关键词
加压
汽液平衡
氯仿
苯
正丁醇
Hydrocarbon-alcohol systems,VLE at elevated pressure
