孔慧,李攀,宋卓栋,张作毅,王云芳

• 1:中国石油大学(华东)化工学院， 山东 青岛 266580

摘要(Abstract)：

为了探究萃取剂（糠醛、异佛尔酮、正辛醇）在常压、308.15 K下对聚甲氧基二甲醚（PODE）水溶液的萃取效果，测量了三元体系水+PODE₁+萃取剂（糠醛、异佛尔酮、正辛醇）和水+PODE₂+萃取剂（糠醛、异佛尔酮、正辛醇）的液液相平衡数据。对PODE的分配系数以及PODE和水的分离因子进行了估算，PODE和水的分离因子均高于1；选用Othmer-Tobias和Hand经验方程检验实验数据的准确性和可靠性，其线性相关的平方均大于0.9700；采用UNIQUAC热力学模型对测量数据进行关联，其相对均方根偏差（RMSD）的值均低于0.0053。结果表明，糠醛、异佛尔酮、正辛醇作为萃取剂具有较好的萃取能力和较高的选择性，实验数据和模拟结果具有较高的一致性，UNIQUAC模型能够很好地关联三元体系的实验数据。

关键词(KeyWords)： 液液相平衡;PODE₁;PODE₂;萃取剂;UNIQUAC

Abstract:

Keywords:

基金项目(Foundation): 2018年度国家重难点研发计划（2018YFB0604800）。

作者(Author): 孔慧,李攀,宋卓栋,张作毅,王云芳

DOI: 10.3969/j.issn.1003-9015.2020.01.004

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