2,6-2,3/3,4-二氯硝基苯二元体系固液相平衡的测定和关联  

Measurement and correlation of solid-liquid equilibrium of 2,6-2,3/3,4-dichloronitrobenzene binary systems

作　　者：佟妍 王彦飞 步雅卿 杨立斌 许史杰 TONG Yan;WANG Yan-fei;BU Ya-qing;YANG Li-bin;XU Shi-jie(Tianjin Key Laboratory of Brine Chemial Engineering and Ecological Utilization of Resources,College of Chemical Engineering and Materials Science,Tianjin University of Science and Technology,Tianjin 300457,China)

机构地区：[1]天津科技大学化工与材料学院天津市卤水化工与资源生态化利用重点实验室,天津300457

出　　处：《化学工程》2020年第6期63-66,78,共5页Chemical Engineering(China)

基　　金：天津市高等学校“制盐与盐化工”创新团队项目资助(TD13-5008);国家自然科学基金资助项目(21503146);青海省科技支撑计划(2015-GX-109A);教育部科研创新团队培育计划([2013]373);天津科技大学青年创新基金(2015LG09);天津市海洋资源与化学重点实验室开放基金(201503)。

摘　　要：通过差示扫描量热法测定了2,6-二氯硝基苯-2,3/3,4-二氯硝基苯2个二元体系的固液相平衡数据,绘制出相应的共熔型二元相图,采用NRTL方程对固液平衡数据进行关联。关联结果表明:NRTL方程对固液平衡数据关联精度较高,2个二元体系共晶点的2,6-二氯硝基苯的摩尔分数分别为0.5000和0.3000,最低共熔温度分别为308.55 K和294.45 K。The solid-liquid equilibrium data of two binary systems of 2,6-dichloronitrobenzene-2,3/3,4-dichloronitrobenzene were determined by differential scanning calorimetry with corresponding eutectic binary phase diagram presented.The solid-liquid equilibrium data was fitted by NRTL equation.The results show that NRTL equation can provide good correlation,the molar fraction of 2,6-dichloronitrobenzene in the eutectic point of the two binary systems are 0.5000 and 0.3000,respectively and the minimum eutectic temperatures are 308.55 K and 294.45 K,respectively.

关 键 词：二元相图 二氯硝基苯异构体 共晶体系 差示扫描量热仪 NRTL模型 

分 类 号：O642.42[理学—物理化学]