| Solid-Liquid Equilibria of Succinic Acid in Cyclohexanone, Cyclohexanol and Their Mixed Solvents |
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| 作者姓名： | 樊丽华 冯沛生 宋微微 |
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| 作者单位： | School of Chemical Engineering and Technology Tianjin University，School of Chemical Engineering and Technology Tianjin University，School of Chemical Engineering and Technology Tianjin University，Tianjin 300072 China，College of Chemical Engineering and Biological Technology Hebei Polytechnic University Tangshan 063009 China，Tianjin 300072 China，Tianjin 300072 China |
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| 摘 要： | Succinic acid serves as an important intermediatefor producing a wide variety of industrially importantchemicals such as butanediol, tetrahydrofuran,γ-bu-tyrolactone,n-methyl pyrrolidinone, 2-pyrrolidinine,paints, polymers, plastics, food additives and c…
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| 关 键 词： | 环己酮 环己醇 混合溶剂 琥珀酸 纯化 固-液平衡 |
| 收稿时间： | 2006-05-30 |
Solid-Liquid Equilibria of Succinic Acid in Cyclohexanone, Cyclohexanol and Their Mixed Solvents |
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| FAN Lihua,MA Peisheng,SONG Weiwei.Solid-Liquid Equilibria of Succinic Acid in Cyclohexanone, Cyclohexanol and Their Mixed Solvents[J].Transactions of Tianjin University,2007,13(1):42-47. |
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| Authors: | FAN Lihua MA Peisheng SONG Weiwei |
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| Abstract: | Solubilities were measured for succinic acid dissolved in cyclohexanone, cyclohexanol and 5 of their mixed solvents at the temperature range from 291.85 K to 358.37 K using a dynamic method. The solubility data were regressed by λh equation, withthe average absolute relative deviation 3.47%. The binary interaction parameter is 0.306 7 for the mixed solvent of cyclohexanone and cyclohexanol was determined by correlating the experimental solubilities with the modified λh equation. When the binary interaction parameter was determined, it can be used to extrapolate the solubilities of succinic acid in mixed solvents of cyclohexanone and cyclohexanol at any proportion. The average absolute relative deviation was 7.69% by using the modified λh equation to correlate the solubility data, however, the average absolute relative deviation was 8.89% by using NRTL equation to correlate the solubility data. The results show that the accuracy of the modified λh equation is better than that of the NRTL equation for the solubility of succinic acid in the 5 mixed solvents of cyclohexanone and cyclohexanol. |
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| Keywords: | solid-liquid equilibrium solubility correlation succinic acid cyclohexanone cyclohexanol mixed solvents |
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