| 4-氨基苯甲酸与5-磺基水杨酸在超临界CO2中的溶解度 |
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| 引用本文： | 郭建建,金君素,田国华,张泽廷.4-氨基苯甲酸与5-磺基水杨酸在超临界CO2中的溶解度[J].北京化工大学学报(自然科学版),2007,34(5):458-461. |
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| 作者姓名： | 郭建建 金君素 田国华 张泽廷 |
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| 作者单位： | 北京化工大学化学工程学院，北京 100029 |
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| 基金项目： | 国家自然科学基金
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北京化工大学青年教师科学研究基金 |
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| 摘 要： | 在308～328K和8.0～21.0MPa实验范围内，采用流动法测定了4-氨基苯甲酸和5-磺基水杨酸的等摩尔比混合物在含与不含夹带剂超临界CO2中的溶解度。分析了溶解度随温度、压力的变化趋势，探讨了夹带剂对混合物中两种物质的选择性，并用Sovova方程对实验数据进行回归，得到了较满意的结果。
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| 关 键 词： | 溶解度 固体混合物 超临界CO2 夹带剂 溶解度 固体混合物 超临界CO2 夹带剂 |
| 修稿时间： | 2007-03-07 |
Study of the mixed solubilities of 4-aminobenzoic acid and 5-sulfosalicylic acid in supercritical CO2 |
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| GUO JianJian,JIN JunSu,TIAN GuoHua,ZHANG ZeTing.Study of the mixed solubilities of 4-aminobenzoic acid and 5-sulfosalicylic acid in supercritical CO2[J].Journal of Beijing University of Chemical Technology,2007,34(5):458-461. |
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| Authors: | GUO JianJian JIN JunSu TIAN GuoHua ZHANG ZeTing |
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| Institution: | College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | The mixed solubilities of 4-aminobenzoic acid and 5-sulfosalicylic acid(blended uniformly in a 1:1 molar ratio) in supercritical carbon dioxide with and without ethanol as cosolvent were measured at 308-328 K and 8.0-21.0 MPa by means of a flow-type equilibrium method.The effects of varying temperature and pressure on the solubility were also investigated.The interaction between the solutes and the selectivity of the cosolvent towards different solutes were also studied.The experimental data for 4-aminobenzoic acid and 5-sulfosalicylic acid in both binary and ternary systems were correlated using the Sovova equation,and good agreement was found. |
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| Keywords: | solubility solid mixture supercritical CO2 cosolvent |
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