Measurement and Correlation of Vapor-Liquid Equilibrium of the 1,2-Epoxycyclohexane-Cyclohexanone Binary System at 101.3 kPa

王训遒; 庄新亮; 蒋登高

doi:10.1016/S1004-9541(14)60042-2

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Measurement and Correlation of Vapor-Liquid Equilibrium of the 1,2-Epoxycyclohexane-Cyclohexanone Binary System at 101.3 kPa

化工热力学 | Updated：2026-01-06

- Measurement and Correlation of Vapor-Liquid Equilibrium of the 1,2-Epoxycyclohexane-Cyclohexanone Binary System at 101.3 kPa
- Chinese Journal of Chemical Engineering Vol. 22, Issue 3, Pages: 355-3591004-954160042-2(2014)
- Affiliations：
  
  2 Wanhua Chemical Group Co., Ltd.,Yantai,China,264002
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(14)60042-2
  CLC：
- Published：2014
- Accepted：
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WANG Xunqiu, ZHUANG Xinliang, JIANG Denggao. Measurement and Correlation of Vapor-Liquid Equilibrium of the 1,2-Epoxycyclohexane-Cyclohexanone Binary System at 101.3 kPa[J]. Chin.J.Chem.Eng., 2014, 22(3): 355-359.
DOI：

WANG Xunqiu, ZHUANG Xinliang, JIANG Denggao. Measurement and Correlation of Vapor-Liquid Equilibrium of the 1,2-Epoxycyclohexane-Cyclohexanone Binary System at 101.3 kPa[J]. Chin.J.Chem.Eng., 2014, 22(3): 355-359. DOI： 10.1016/S1004-9541(14)60042-2.

摘要

Abstract

Many by-products are generated in the process of oxidizing cyclohexene to produce 1

2-epoxycyclohexane by hydrogen peroxide

including cyclohexanol

cyclohexanone

etc. To obtain high-purity 1

2-epoxycyclohexane

the by-products must be removed through rectification. Refining 1

2-epoxycyclohexane through rectification requires vapor-liquid equilibrium (VLE) data of the related system. Therefore

the VLE data of 1

2-epoxycyclohexane- cyclohexanone system were measured at 101.3 kPa using an improved EC-2 VLE still. The thermodynamic consistency of the data was then tested by Herington's method and the rigorous point-to-point method. The results obtained were exemplary. The VLE data were correlated by the Wilson and non-random two-liquid (NRTL) equations

using the error sum squares of the vapor composition as the objective function to obtain the model parameters. The difference between the calculated values and the experimental data is minor

indicating that the VLE data are suitable for engineering design.

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