Solubility of o-Nitrobenzoic Acid in Modified Supercritical Carbon Dioxide at (308 to 328) K

被引：5
作者：
Jin, Jun-su [1 ]
Dou, Zi-ming [1 ]
Liu, Hong-hai [2 ]
Wu, Hao [1 ]
Zhang, Ze-ting [1 ]
机构：
[1] Beijing Univ Chem Technol, Coll Chem Engn, Beijing 100029, Peoples R China
[2] Lanzhou Petrochem Corp CNPC, Lanzhou 730060, Gansu, Peoples R China
来源：
JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2012年 / 57卷 / 08期
基金：
中国国家自然科学基金;
关键词：
COSOLVENT; FLUIDS;
D O I：
10.1021/je300023v
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The equilibrium solubility of o-nitrobenzoic acid in super-critical carbon dioxide with cosolvents was determined with the dynamic method at temperatures of (308, 318, and 328) K and pressures in the range of (10.0 to 21.0) MPa. Ethanol and ethyl acetate were chosen as the cosolvents with a mole fraction of 3.5 %. The equilibrium solubility of o-nitrobenzoic acid can be enhanced by the presence of both cosolvents. The enhancement effects of ethanol and ethyl acetate were compared at 318 K; ethyl acetate showed a better cosolvent effect. The experimental data were correlated by the modified Mendez-Santiago and Teja model and the modified Sovova model. The results showed that the two models were able to reasonably correlate the experimental solubility data.
引用
收藏
页码：2217 / 2220
页数：4
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