摘要 本文利用差式扫描量热法,测定了邻二氯苯/间二氯苯、间二氯苯/对二氯苯、1,2,4-三氯苯/邻二氯苯、1,2,4-三氯苯/间二氯苯和1、2、4-三氯苯/对二氯苯等5个二元物系的固液平衡关系,并按以下方程进行了数据拟合: T=T_m~*[1+sum from j=1 to n a_j(x_1-x_1~*)~j]式中,T_m~*为纯物质的熔点,x_1~*为T_m~*下组分1的摩尔分率,a_j为拟合系数。通过按不同比例配制的邻、间、对二氯苯以及1,2,4-三氯苯拟二元相图,测出了下列物系三元固液平衡温度-组成关系:邻二氯苯/间二氯苯/对二氯苯、邻二氯苯/对二氯苯/1,2,4-三氯苯和邻二氯苯/间二氯苯/1,2,4-三氯苯。
Abstract：
The solid-liquid equilibrium data for five binary systems: o-dichlo robenzene/m-dichlorobenzene; m-dichlorobenzene/p-dichlorobenzene; 1, 2, 4-trichlorobenzene/odichlorobenzene; 1, 2, 4-trichlorobenzene/m-dichlorobenzene; 1, 2, 4-trichlorobenzene/p-dichlorobeneezen had been determined by differential scanning c-alorimetry and had been correlatad by the equation :
T=T_m~*[1+sum from j=1 to n a_j(x_1-x_1~*)~j] Where T_m~*——melting point of component
x_1~*——equilibrium mole fraction of component 1 at temp. T_x~*
a_j—adjustable parameter
Through determing the solid—liguid equilibrium of pseudo binary system from dichlorobenzene isomers and 1, 2, 4-trichlorobenzene, the solidliquid equilibrium temperature-composition relations for following ternary systems had been determined: o-dichlorobenzene/m-dichloroenzene/p-dichlorobenzene; o-dichlorobenzene/p-dichorobenzene/1, 2, 4-trichlorobenzene, and o-dichlorobenzene/m-dichlorobenzene/1, 2, 4-trichlorobenzene.
Jin Kexin Chen Yongqiang Wei Dongwei .The Measurement of Solid-Liquid Equilibrium For Dichlorobenzene Isomers and 1, 2, 4-trichlorobenzene Systems[J]. Chemcial Industry and Engineering, 1992,9(3): 17-25
[1]
金克新,谢朝纲.天津大学学报,1988,2;98
[2]
CRC Handbook of Chamical and Physics. 99th ed, 1986
[3]
Timmermans J Pysics-Chemical Constats of Binary System. Interscience Puble Inc, New York, 1960
[4]
Perry's Chemical Engineering Handbook 6th ed. CRC Handbook of Chemistry and Physics, 66th ed, 1986
[5]
Ott J B, et al. J Chem Thcrmodynamics, 1983, (15) : 267
1992, Vol. 9 
