Solid-liquid equilibrium of dimethyl terephthalate (DMT), dimethyl isophthalate (DMI) and dimethyl phthalate (DMP) in melt crystallization process

doi:10.1016/j.cjche.2017.03.003

Chinese Journal of Chemical Engineering ›› 2017, Vol. 25 ›› Issue (12): 1735-1739.DOI: 10.1016/j.cjche.2017.03.003

• 第25届中国过程控制会议专栏 • 上一篇下一篇

Solid-liquid equilibrium of dimethyl terephthalate (DMT), dimethyl isophthalate (DMI) and dimethyl phthalate (DMP) in melt crystallization process

Chunyuan Wu, Youwei Cheng, Lijun Wang, Xi Li

Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China

收稿日期:2016-12-07 修回日期:2017-03-02 出版日期:2017-12-28 发布日期:2018-01-18
通讯作者: Youwei Cheng,E-mail address:ywcheng@zju.edu.cn.

Solid-liquid equilibrium of dimethyl terephthalate (DMT), dimethyl isophthalate (DMI) and dimethyl phthalate (DMP) in melt crystallization process

Chunyuan Wu, Youwei Cheng, Lijun Wang, Xi Li

Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China

Received:2016-12-07 Revised:2017-03-02 Online:2017-12-28 Published:2018-01-18
Contact: Youwei Cheng,E-mail address:ywcheng@zju.edu.cn.

摘要/Abstract

摘要： The binary solid-liquid equilibrium of Dimethyl Terephthalate (DMT), Dimethyl Isophthalate (DMI) and Dimethyl Phthalate (DMP)was investigated by experiment and differential scanning calorimetry (DSC). The result demonstrated DMT/DMI and DMT/DMP systems are eutectic while DMI/DMP is a solid-solution system. The eutectic temperature of DMT/DMI system is 336.7 K and that of DMT/DMP is 271.1 K. Furthermore, a classical solid-liquid phase equilibrium model was used to fit the experimental data of the eutectic systems of DMT/DMI and DMT/ DMP and the theoretical model could describe the eutectic solid-liquid phase diagrams properly.

关键词: Solid-liquid equilibrium, Differential scanning calorimetry, Eutectic, Solid-solution, Phase equilibrium model

Abstract: The binary solid-liquid equilibrium of Dimethyl Terephthalate (DMT), Dimethyl Isophthalate (DMI) and Dimethyl Phthalate (DMP)was investigated by experiment and differential scanning calorimetry (DSC). The result demonstrated DMT/DMI and DMT/DMP systems are eutectic while DMI/DMP is a solid-solution system. The eutectic temperature of DMT/DMI system is 336.7 K and that of DMT/DMP is 271.1 K. Furthermore, a classical solid-liquid phase equilibrium model was used to fit the experimental data of the eutectic systems of DMT/DMI and DMT/ DMP and the theoretical model could describe the eutectic solid-liquid phase diagrams properly.

Key words: Solid-liquid equilibrium, Differential scanning calorimetry, Eutectic, Solid-solution, Phase equilibrium model

Chunyuan Wu, Youwei Cheng, Lijun Wang, Xi Li. Solid-liquid equilibrium of dimethyl terephthalate (DMT), dimethyl isophthalate (DMI) and dimethyl phthalate (DMP) in melt crystallization process[J]. Chinese Journal of Chemical Engineering, 2017, 25(12): 1735-1739.

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Solid-liquid equilibrium of dimethyl terephthalate (DMT), dimethyl isophthalate (DMI) and dimethyl phthalate (DMP) in melt crystallization process

Solid-liquid equilibrium of dimethyl terephthalate (DMT), dimethyl isophthalate (DMI) and dimethyl phthalate (DMP) in melt crystallization process

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