碳酸二苯酯在乙醇-碳酸二乙酯中固液平衡的测定与关联  

Measurement and correlation of solid-liquid equilibrium of diphenyl carbonate in ethanol-diethyl carbonate

作　　者：黎文超[1] 宣爱国[1,2] 吴元欣[1,3] 艾军[1,2] 梁蕾[1] 

机构地区：[1]绿色化工过程省部共建教育部重点实验室 [2]武汉工程大学湖北省新型反应器与绿色化学工艺重点实验室 [3]武汉市化学工程技术中心,湖北武汉430073

出　　处：《化工学报》2009年第6期1357-1361,共5页CIESC Journal

基　　金：国家自然科学基金项目(20476083;50576028)~~

摘　　要：采用激光法测定了碳酸二苯酯(DPC)在乙醇-碳酸二乙酯(DEC)混合溶剂中的溶解度。结果表明,在283.15～333.15 K下,碳酸二苯酯在混合溶剂中的溶解度随温度的升高而增大;相同温度下,溶解度随着乙醇浓度的增大而减小。进一步选用Wilson方程和λh方程拟合DPC的溶解度,根据实验数据回归了模型参数,溶解度拟合值与实验值非常吻合,平均误差小于2.0%。计算表明Wilson方程对碳酸二苯酯-乙醇-碳酸二乙酯体系的计算精度更高些。The solubility of diphenyl carbonate （DPC） in ethanol-diethyl carbonate （DEC） was determined with the laser-scattering method. The results showed that the solubility of DPC in the mixed solvents always increased with rising temperature. At 283.15--333.15 K, the solubility decreased with the increase of ethanol concentration. The experimental data were further correlated with Wilson equation and Ah equation, and model parameters were regressed. For the DPC- C2 H5 OH-DEC system, the agreement between the experimental solubilities and calculated values was satisfactory. The mean deviation was less than 2.0%. Obviously, the correlated results using Wilson equations were superior to those obtained from λh equation.

关 键 词：碳酸二苯酯 固液平衡 溶解度模型 

分 类 号：O625.5[理学—有机化学]