白杨,唐韶坤,谢承中

• 1:天津大学化工学院绿色合成与转化教育部重点实验室
• 2:天津化学化工协同创新中心

摘要(Abstract)：

为提高大孔吸附树脂对油茶多酚的吸附性能,采用不同极性的大孔树脂复配的方法,对油茶籽饼粕中提取的多酚物质进行吸附纯化。研究表明,90%(wt)D101-1/10%(wt)DM301复配对油茶多酚的吸附效率最高、达83.75%,且高于单一树脂对油茶多酚的吸附。在温度为298~315 K,三种模型的非线性拟合结果表明复配树脂对油茶多酚吸附平衡数据符合Langmuir等温吸附模型;对吸附焓、自由能、吸附熵的计算进一步验证了复配树脂对油茶多酚的吸附是放热自发的物理吸附。在此基础上进一步研究了298 K下复配树脂对油茶多酚的吸附动力学,结果表明Pseudo-second-order动力学模型能够很好地描述该吸附过程。

关键词(KeyWords)： 大孔树脂;复配;吸附热力学;等温线;动力学;非线性拟合

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 白杨,唐韶坤,谢承中

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