苯胺盐酸盐在乙醇-水体系中的溶解度测定和混合溶剂电解质模型  

Solubility Measurement of Aniline Hydrochloride in C6H5OH-H2O System and Chemical Modeling of Mixed Solvent Electrolyte

作　　者：孙顺平[1] 李志宝[1] 

机构地区：[1]中国科学院过程工程研究所绿色过程与工程重点实验室,北京100190

出　　处：《过程工程学报》2011年第5期777-781,共5页The Chinese Journal of Process Engineering

基　　金：国家自然科学基金资助项目(编号:21076213);国家重点基础研究发展规划(973)基金资助项目(编号:2009CB219904)

摘　　要：采用动态法测定了苯胺盐酸盐([HAE]Cl)在乙醇及乙醇-水溶液中288～348K范围内的溶解度.数据表明,苯胺盐酸盐在两个体系中的溶解度随温度升高而增大;当乙醇浓度大于30%(ω)时,溶解度随乙醇浓度增大而迅速降低.为研究苯胺盐酸盐在乙醇-水体系中的相平衡关系,用混合溶剂电解质NRTL模型对所测溶解度数据进行模拟计算,得到了[HAE]Cl与C6H5OH的相互作用能量参数,建立了[HAE]Cl-C6H5OH-H2O体系的混合溶剂电解质模型及其立体相图.The solubility of aniline hydrochloride（[HAE]Cl） in C6H5OH-H2O system was investigated by using a dynamic method in the temperature range from 288 to 348 K.The results show that the solubility of [HAE]Cl in all cases increases with increasing of the temperature,while sharply decreases when the concentration of ethanol solution is more than 30%（w）.With the purpose of investigating the phase behavior of [HAE]Cl in C6H5OH-H2O system,a mixed solvent electrolyte thermodynamic model of electrolyte NRTL（non-random two liquids） was used to predict the solubility of [HAE]Cl in various compositions of C6H5OH solution at different temperatures.New model parameters for electrolyte NRTL model were obtained via the regression of experimental solubility.The results indicate that electrolyte NRTL model can provide good prediction in the solubility of [HAE]Cl in both pure ethanol and C6H5OH-H2O system.In order to describe the phase behavior of [HAE]Cl in C6H5OH-H2O system clearly,the phase diagram of [HAE]Cl-C6H5OH-H2O system was constructed with the established mixed solvent electrolyte model.

关 键 词：苯胺盐酸盐 溶解度 混合溶剂 电解质NRTL模型 

分 类 号：TQ132.2[化学工程—无机化工]