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目的 :考察 2 -乙氧基乙醇、癸烷以及水的混合液的三元体系的相行为 ,找出适合的溶液模型 ,准确地推算 2 -乙氧基乙醇、癸烷和水的混合液热力学的性质 ,为石油化学工业分离操作、分离过程设计提供有价值的参考 .方法 :通过测定可作界面活性剂的 2 -乙氧基乙醇、癸烷和水的液液相平衡数据 ,并将实验数据和溶液模型的计算结果进行比较 .结果 :测定在 2 98K时 2 -乙氧基乙醇、癸烷和水的三相平衡 ,并用extendedUNIQUAC模型推算其相平衡 ,实验结果和计算结果相当吻合 .结论 :ExtendedUNIQUAC模型成功地描述了 2 -乙氧基乙醇、癸烷和水的液液三相平衡 .
OBJECTIVE: To investigate the phase behavior of the ternary system of 2 - ethoxyethanol, decane and water mixture and find out the suitable solution model to accurately calculate the thermodynamics of the mixture of 2 - ethoxyethanol, decane and water , Which will provide valuable reference for the separation operation and design of separation process in petrochemical industry.Methods: The liquid - liquid equilibrium data of 2 - ethoxyethanol, decane and water, which can be used as surfactant, were measured and the experiment The results were compared with those of the solution model.RESULTS: The phase equilibrium of 2 - ethoxyethanol, decane and water was determined at 2 98K, and the phase equilibrium was estimated by extended UNIQUAC model. The experimental and calculated results are in good agreement. : The Extended UNIQUAC model successfully described the liquid-liquid phase equilibrium of 2-ethoxyethanol, decane and water.