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

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

第25届中国过程控制会议专栏 | Updated：2026-01-06

- Solid-liquid equilibrium of dimethyl terephthalate (DMT), dimethyl isophthalate (DMI) and dimethyl phthalate (DMP) in melt crystallization process
- Chinese Journal of Chemical Engineering Vol. 25, Issue 12, Pages: 1735-1739(2017)
- Affiliations：
  
  Department of Chemical and Biological Engineering, Zhejiang University,Hangzhou,China,310027
- Author bio：
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- DOI：
  CLC：
- Published：2017
- Accepted：
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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]. Chin.J.Chem.Eng., 2017, 25(12): 1735-1739.
DOI：

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]. Chin.J.Chem.Eng., 2017, 25(12): 1735-1739. DOI：

摘要

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.

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