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张泽廷, Jun-su Jin, Ze-ting Zhang, Qun-sheng Li, Ying Li, En-ping Yu
Journal of Chemical and Engineering Data, Vol. 50, No. 3, 2005,-0001,():
-1年11月30日
The solid solubility of propyl p-hydroxybenzoate was measured for the first time in supercritical carbon dioxide at temperatures of (308.15, 318.15 and 328.15) K and pressures from (8.0 to 23.0) MPa. The influence of cosolventsscyclohexane, cyclohexane + acetone (molar ratio 1:1), and acetoneswas studied at a mole fraction of 0.035. The data were obtained by using a flow-type phase equilibrium apparatus, which was further tested by measuring the solubility of benzoic acid in compressed CO2. The measured solubilities in supercritical CO2 without and with cosolvents were correlated using the Chrastil equation and the modified Chrastil equation, respectively.
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【期刊论文】Solubility of solid solutes in supercritical carbon dioxide with and without cosolvents
张泽廷, Qunsheng Li, Zeting Zhang, Chongli Zhong, Yancheng Liu, Qingrong Zhou
Q. Li et al. Fluid Phase Equilibria 207 (2003) 183-192,-0001,():
-1年11月30日
The solubility of 2-naphthol and anthracene in supercritical CO2 was determined at 308.1, 318.1 and 328.1 K, with and without cosolvent. The influence of three polar or nonpolar cosolvents, acetone, ethanol and cyclohexane, was studied at concentrations of 3.6 and 4.0 mol%. The solubility enhancement with these cosolvents is considerable, and the cosolvent effect increases in the order ethanol, acetone, and cyclohexane for 2-naphthol and for anthracene, the order is cyclohexane, ethanol, and acetone. The influence of density and cosolvent on the solid solubility was studied and discussed.
Solubility, Supercritical fluid, Solid solute, Cosolvent
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【期刊论文】Solubility of mixed solids in supercritical carbon dioxide
张泽廷, Guohua Tian, Junsu Jin, Zeting Zhang, Jianjian Guo
G. Tian et al. Fluid Phase Equilibria 251 (2007) 47-51,-0001,():
-1年11月30日
The solubilities of pure and equal-molar mixed o-phthalic acid and p-aminobenzoic acid in supercritical carbon dioxide, were determined at 308.15, 318.15, and 328.15 K, and over the pressure range from 8.0 to 21.0MPa. The solubility of a given solid in a ternary system increased relative to the value of the corresponding binary system, and was in proportion to the solubility of the other solid in the ternary system. The selectivity of supercritical carbon dioxide to the solid mixture increased with the increasing temperature. The model proposed by Mendez-Santiago and Teja was applied using statistical software to correlate the solubility data of both binary and ternary systems with good results.
Solubility, Mixed solids, o-Phthalic acid, p-Aminobenzoic acid, Supercritical carbon dioxide
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【期刊论文】Solubility of p-Nitrobenzoic Acid in Supercritical Carbon Dioxide with and without Cosolvents
张泽廷, Guo-Hua Tian, Jun-Su Jin, Qun-Sheng Li, and Ze-Ting Zhang
Journal of Chemical and Engineering Data, Vol. 51, No. 2, 2006,-0001,():
-1年11月30日
The solubilities of p-nitrobenzoic acid in supercritical carbon dioxide and carbon dioxide + cosolvents were determined at (308, 318, and 328) K and over the pressure range from (8.0 to 21.0) MPa. The effect of cosolvents, cyclohexane, ethanol, cyclohexane + acetone (equal-molar mixture), and acetone on the solubility of p-nitrobenzoic acid was studied at a mole fraction of 3.0 % (cosolvents in supercritical mixtures). The solubility data in supercritical carbon dioxide in the absence and presence of cosolvents were correlated by the equations proposed by Mendez-Santiago and Teja with satisfactory agreement, respectively.
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【期刊论文】超临界流体填料萃取塔流体力学和传质性能(Ⅱ)1传质性能
张泽廷, 张春虎, 朱美文, 于恩平
化工学报1994年2月第45卷第1卷/Journal of Chemical Industry and Engineering (China) February 1994, Vol. 45, No. 1,-0001,():
-1年11月30日
根据双膜理论,建立了超临界流体填料萃取塔液相总体积传质系数关联式;依据柱塞流模型.应用超临界二氧化碳-异丙醇-水和超临界二氧化碳-乙醇-水2种实验体系在内径为25mm的塔内对金属板波和金属丝网θ环2种填料的传质性能进行了模拟计算。结果表明,本文提出的传质数学模型能较好地描述超临界流体填料萃取塔的传质性能。
超临界流体萃取, 填料塔, 传质
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