摘要
考查了环己烷-乙醇气液体系建立平衡需要的加热时间和平衡时气相中的温度分布情况,以及自制保温隔热套对这两者的影响。实验表明,给玻璃沸点仪套上保温隔热套能缩短建立气液平衡需要的加热时间,减少蒸馏瓶内气相的温度分布梯度和分馏效应,确保绘制的相图更准确。
In this paper, the heating time and temperature distribution in the cyclohexane-ethanol vapor-liquid equilibrium system are investigated, and the influence of a thermal insulation cover has also been investigated. The experimental results show that the thermal insulation cover can shorten the heating time for the system to reach the vapor-liquid equilibrium, and reduce the temperature distribution gradient and the fractionation effect of the vapor phase in the distillation flask, thus, a more accurate phase diagram can be obtained.
作者
郑欧
张栢茂
祝淑颖
黄长沧
吴舒婷
李浩宏
ZHENG Ou;ZHANG Baimao;ZHU Shuying;HUANG Changcang;WU Shuting;LI Haohong(College of Chemistry,Fuzhou University,Fuzhou 350116,P.R.China.)
出处
《大学化学》
CAS
2018年第10期85-90,共6页
University Chemistry
基金
福州大学高等教育教学改革工程项目(50010864)
福州大学本科生科研训练项目(24046)
福州大学一流本科教育改革项目(003698)
关键词
物理化学
气液相图绘制
分馏效应
Physical chemistry
Vapor-liquid phase diagram plotting
Fractionation effect
