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芳香族羧酸溶解度的测定与关联

马沛生; 夏清

  

  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:2001-03-28 发布日期:2001-03-28
  • 通讯作者: 马沛生

Determination and Correlation for Solubility of Aromatic Acids in Solvents

MA Peisheng; XIA Qing   

  1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China 
  • Received:1900-01-01 Revised:1900-01-01 Online:2001-03-28 Published:2001-03-28
  • Contact: MA Peisheng

摘要: Solubility of benzoic acid, terephthalic acid and 2,6-naphthalene dicarboxylic acid in
water, acetic acid, N,N-dimethyfformamide, N,N-dimethylacetamide, dimethyl sulphoxide and
N-methyl-2-ketopyrrolidine were measured by dynamic method. The solubilities were
calculated by UNIFAC group contribution method, in which new groups, BCCOOH and NCCOOH,
were introduced to express the activity coefficients of aromatic acids and new interaction
parameters of the new groups were expressed as the function of temperature, which were
determined from the experimental data. The new interaction parameters provided good
calculated result. The experimental data were also correlated with Wilson and λ-h models,
and results were compared with present UNIFAC model.

关键词: solid-liquid equilibrium;solubility;UNIFAC group contribution method;2;6-naphthalene dicarboxylic acid

Abstract: Solubility of benzoic acid, terephthalic acid and 2,6-naphthalene dicarboxylic acid in
water, acetic acid, N,N-dimethyfformamide, N,N-dimethylacetamide, dimethyl sulphoxide and
N-methyl-2-ketopyrrolidine were measured by dynamic method. The solubilities were
calculated by UNIFAC group contribution method, in which new groups, BCCOOH and NCCOOH,
were introduced to express the activity coefficients of aromatic acids and new interaction
parameters of the new groups were expressed as the function of temperature, which were
determined from the experimental data. The new interaction parameters provided good
calculated result. The experimental data were also correlated with Wilson and λ-h models,
and results were compared with present UNIFAC model.

Key words: solid-liquid equilibrium, solubility, UNIFAC group contribution method, 2, 6-naphthalene dicarboxylic acid