CIESC Journal

• THERMODYNAMICS AND CHEMICAL…… • 上一篇    下一篇

2,6-萘二甲酸二甲酯在有机溶剂中溶解度的测定与关联

夏清; 马沛生   

  1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-04-28 发布日期:2007-04-28
  • 通讯作者: 夏清

Measurement and correlation for solubility of dimethyl-2,6-naphthalene dicarboxylate in 
organic solvents

XIAQing;MAPeisheng   

  1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-04-28 Published:2007-04-28
  • Contact: XIA Qing

摘要: Solubility of dimethyl-2,6-naphthalene dicarboxylate in acetic acid, N,N-dimethylformamide, N,N-dimethyl acetamide, dimethyl sulphoxide, and N-methyl-2-ketopyrrolidine were determined using a dynamic method. The measured systems were correlated by UNIFAC group contribution method. A new main group (aromatic ester, ACCOO) was defined to express the activity coefficients of the aromatic ester. New interaction parameters of the ACCOO group were expressed as the first-order function of temperature and were determined from the experimental data. The calculated results for the new interaction parameters were satisfactory. The measured systems were also correlated with the Wilson and λ-h models, and the results were compared with those of the UNIFAC model.

关键词: solid-liquid equilibrium;solubility;dimethyl-2;6-naphthalene dicarboxylate;UNIFAC group contribution method;activity coefficient

Abstract: Solubility of dimethyl-2,6-naphthalene dicarboxylate in acetic acid, N,N-dimethylformamide, N,N-dimethyl acetamide, dimethyl sulphoxide, and N-methyl-2-ketopyrrolidine were determined using a dynamic method. The measured systems were correlated by UNIFAC group contribution method. A new main group (aromatic ester, ACCOO) was defined to express the activity coefficients of the aromatic ester. New interaction parameters of the ACCOO group were expressed as the first-order function of temperature and were determined from the experimental data. The calculated results for the new interaction parameters were satisfactory. The measured systems were also correlated with the Wilson and λ-h models, and the results were compared with those of the UNIFAC model.

Key words: solid-liquid equilibrium, solubility, dimethyl-2, 6-naphthalene dicarboxylate, UNIFAC group contribution method, activity coefficient