| 用渗滤法从桑白皮中浸取桑根酮的动力学模型 |
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| 引用本文： | 陆向红,计建炳,任其龙,吴平东. 用渗滤法从桑白皮中浸取桑根酮的动力学模型[J]. 化工学报, 2005, 56(3): 518-523 |
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| 作者姓名： | 陆向红 计建炳 任其龙 吴平东 |
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| 作者单位： | 浙江工业大学化学工程与材料学院，浙江 杭州 310014;浙江大学材料与化学工程学院，浙江 杭州 310027 ; |
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| 摘 要： | 研究了用渗滤法从桑白皮中浸取药用成分桑根酮C、D的动力学，并建立了渗滤过程中的传质模型.通过多参数拟合得到高浓度下桑根酮C、D在丙酮和桑白皮纤维间的浸取等温线，以及在渗滤过程中的内扩散系数及液膜传质系数，并关联了渗滤过程中液膜传质系数和流速的关系.结果显示，本文所建立的传质模型较好地反映了渗滤操作中的传质过程.
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| 关 键 词： | 渗滤 传质模型 桑根酮C 桑根酮D |
| 文章编号： | 0438-1157(2005)03-0518-06 |
| 收稿时间： | 2003-12-01 |
| 修稿时间： | 2004-9-13 |
Dynamic model of leaching Sanggenon from Sangbaipi |
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| LU Xianghong,Ji Jianbing,Ren Qilong,Wu Pingdong. Dynamic model of leaching Sanggenon from Sangbaipi[J]. Journal of Chemical Industry and Engineering(China), 2005, 56(3): 518-523 |
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| Authors: | LU Xianghong Ji Jianbing Ren Qilong Wu Pingdong |
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| Abstract: | The dynamics of leaching Sanggenon from Sangbaipi was studied, and the dynamic model describing leaching process, accounting to non-linear isotherm, was developed. The equilibrium equations of Sanggenon C and D between Sangbaipi and acetone, the intrapartical diffusion coefficient and the mass transfer coefficient in liquid film were obtained. The correlationships between the mass transfer coefficient in liquid film and the velocity were developed. The result that the dynamic curves calculated by the model were agreement with the experimental curves showed that the model can well express leaching process. |
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| Keywords: | leaching mass transfer model Sanggenon C Sanggenon D |
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