| 胡芦巴总皂苷在HPD 400A大孔树脂上的吸附性能研究 |
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| 引用本文： | 杨小彦,李稳宏,唐璇,杜海胜,李冬.胡芦巴总皂苷在HPD 400A大孔树脂上的吸附性能研究[J].离子交换与吸附,2011,27(1). |
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| 作者姓名： | 杨小彦 李稳宏 唐璇 杜海胜 李冬 |
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| 作者单位： | 1. 西北大学化工学院,西安,710069
2. 西安石油大学化学化工学院,西安,710065 |
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| 基金项目： | 陕西省科技厅重点攻关项目(2007K07-05); 2006年陕西省资源生物重点实验室访问学者项目 |
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| 摘 要： | 静态条件下,对胡芦巴中总皂苷在HPD 400A树脂的吸附平衡、吸附动力学、热力学进行了深入探讨,测定了不同温度下胡芦巴中总皂苷在该树脂上的吸附等温线,吸附动力学曲线以及热力学参数。结果表明,Freundlich方程可较好地描述胡芦巴中总皂苷在该树脂上的吸附平衡;吸附动力学规律可用二级速率方程表示,液膜扩散和颗粒内扩散是吸附的主要速率控制步骤,吸附活化能为8.314kJ/mol;热力学参数表明此吸附过程为吸热过程。
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| 关 键 词： | 胡芦巴 总皂苷 大孔吸附树脂 动力学 热力学 |
ADSORPTION PERFORMANCE OF SAPONINS EXTRACTED FROM FENUGREEK ON THE HPD 400A MACROPOROUS RESIN |
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| YANG Xiaoyan,LI Wenhong,TANG Xuan,DU Haisheng,LI Dong.ADSORPTION PERFORMANCE OF SAPONINS EXTRACTED FROM FENUGREEK ON THE HPD 400A MACROPOROUS RESIN[J].Ion Exchange and Adsorption,2011,27(1). |
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| Authors: | YANG Xiaoyan LI Wenhong TANG Xuan DU Haisheng LI Dong |
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| Institution: | YANG Xiaoyan1 LI Wenhong1 TANG Xuan2 DU Haisheng1 LI Dong1 1.College of Chemical Engineering,Northwest University,Xi'an 710069,China 2.School of Chemistry & Chemical Engineering,Xi'an Shiyou University Xi'an 710065,China |
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| Abstract: | In the presented paper the adsorption isotherm,kinetic curve and thermodynamic parameters of the total saponins from fenugreek on the HPD 400A resin were measured,and the adsorption equilibrium,thermodynamics and kinetics were also discussed.The adsorption equilibrium was well fitted by Freundlich formula,and the kinetics could be formulated by second order rate equation.The adsorption rate was predominantly determined by liquid membrane diffusion and intra-particle diffusion,whereas the activation energy o... |
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| Keywords: | Fenugreek Saponins Macroporous resin Kinetics Thermodynamic |
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