XAD-16大孔树脂对恩拉霉素的吸附热力学和动力学性质研究

发布时间：2018-11-01 14:12

【摘要】：目的研究恩拉霉素在XAD-16大孔树脂上吸附的动力学和热力学特性。方法通过静态吸附实验,利用实验数据对相关等温模型进行拟合来描述XAD-16大孔树脂对恩拉霉素的等温吸附行为;用热力学参数对恩拉霉素吸附过程的热力学性质进行描述;分别采用准一级动力学方程和准二级动力学方程探讨XAD-16大孔树脂吸附恩拉霉素的动力学特性。结果在298~308 K内,Freundlich模型能较好的描述XAD-16大孔树脂对恩拉霉素的吸附等温过程;ΔH0,ΔG0,恩拉霉素在XAD-16大孔树脂上的吸附属于自发的物理吸附过程;XAD-16大孔树脂对恩拉霉素吸附过程符合准二级动力学方程。结论通过对恩拉霉素在XAD-16大孔树脂上吸附热力学和动力学的研究,为XAD-16大孔树脂大规模分离纯化恩拉霉素提供了理论依据。
[Abstract]:Objective to study the kinetic and thermodynamic characteristics of enramycin adsorption on XAD-16 macroporous resin. Methods the isothermal adsorption behavior of enramycin on XAD-16 macroporous resin was described by static adsorption experiment, and the thermodynamic properties of enramycin adsorption process were described by thermodynamic parameters. The kinetic characteristics of enramycin adsorption by XAD-16 macroporous resin were studied by using quasi first order kinetic equation and quasi second order kinetic equation respectively. Results the adsorption isotherm of enramycin on XAD-16 macroporous resin was well described by Freundlich model within 298 ~ 308K, and the adsorption of 螖 H _ 0, 螖 G _ 0 and enramycin on XAD-16 macroporous resin was a spontaneous physical adsorption process. The adsorption process of enramycin by XAD-16 macroporous resin accords with the quasi-second order kinetic equation. Conclusion by studying the thermodynamics and kinetics of enramycin adsorption on XAD-16 macroporous resin, it provides a theoretical basis for the large-scale separation and purification of enramycin by XAD-16 macroporous resin.
【作者单位】：浙江工商大学;
【基金】：浙江省新苗人才计划资助项目(2015R408073) 食品科学与工程浙江省重中之重一级学科资助
【分类号】：R943

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