乙酸-苯-三乙胺的液液相平衡

Liquid-liquid equilibria for mixtures of acetic acid,triethylamine and benzene

测定了在293 15K时乙酸、苯和三乙胺的液液二相平衡,并将实验数据和UNIQUAC缔合溶液模型的计算结果进行比较.模型假设乙酸以二聚形式存在,乙酸与三乙胺可以形成1∶1、2∶1、3∶1和4∶1型的化合物,并且假设在三元体系中不同分子之间没有其他的相互作用力.UNI QUAC缔合溶液模型成功地描述了乙酸、苯和三乙胺的液液二相平衡.

Ternary liquid-liquid equilibria for the acetic acid + benzene + trie thylamine was measured at 293.15 K. The experimental results were compared wit h t hose calculated by the UNIQUAC associated-solution model from the binary informa tion. The model assumes as follows: the dimerization of the acid, 1∶1, 2∶1, 3 ∶1 and 4∶1 complex formation between the acid and the amine, and non-specific inte r actions among molecules present in the ternary solutions. The UNIQUAC associated -solution model successfully represented the liquid-liquid equilibria of acetic acid, benzene and triethylamine.