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Citation: ZHENG Ou, ZHANG Baimao, ZHU Shuying, HUANG Changcang, WU Shuting, LI Haohong. Fractionation Effect and Method Improvement in the Experiment of Vapor-Liquid Equilibrium Phase Diagram of Cyclohexane-Ethanol System[J]. University Chemistry, ;2018, 33(10): 85-90. doi: 10.3866/PKU.DXHX201801046 shu

Fractionation Effect and Method Improvement in the Experiment of Vapor-Liquid Equilibrium Phase Diagram of Cyclohexane-Ethanol System

College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China

Received Date: 31 January 2018

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.
- Physical chemistry,
- Vapor-liquid phase diagram plotting,
- Fractionation effect
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