中文摘要：

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.

英文摘要：

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.