苯-环己烷-甲基环己烷-DMF体系汽液平衡数据的测定与关联

采用改进的Ｒｏｓｅ釜，测定了１０１．３ｋＰａ下，苯（１）－ＤＭＦ（２）、环己烷（１）－ＤＭＦ（２）、环己烷（１）－甲基环己烷（２）３组二元体系，以及苯（１）－环己烷（２）－ＤＭＦ（３）三元体系，苯（１）－环己烷（２）－甲基环己烷（３）－ＤＭＦ（４）四元体系的ＶＬＥ数据。３组二元体系的ＶＬＥ数据均通过了积分法和微分法热力学一致性检验，应用ＮＲＴＬ和ＵＮＩ－ＱＵＡＣ模型及ＰＲ方程关联了二元体系的ＶＬＥ数据，并推算了上述三元和四元体系ＶＬＥ数据。

Measurement and correlation of vapor liquid equilibrium data for benzene cyclohexane methyl cyclohexane DMF systems

Isobaric (101.3 kPa)vapor liquid equilibrium(VLE) data were measured for the binary systems of benzene DMF(N,N dimethyl formamide), cyclohexane DMF, and cyclohexane methylcyclohexane, the ternary system of benzene cyclohexane DMF, and the quaternary system of benzene cyclohexane methylcyclohexane DMF.The thermodynamic consistency of the binary VLE data was tested by using both the Area and Differential methods.The binary VLE data were correlated by NRTL and UNIQUAC models and calculated by the Peng Robinson equation.The ternary and quaternary VLE data were predicted based on the above parameters, respectively.