微分散轮盘萃取塔传质特性研究

Mass transfer characteristics for micropore dispersion rotating impeller column

研究了微分散轮盘塔萃取磷酸的传质规律,考察了转速、相比、停留时间对萃取率的影响,并根据质量守恒,建立了微分散轮盘塔的传质模型并与实验结果进行对比。结果表明,萃取率随转速、相比和停留时间的增加呈上升趋势,其中转速、相比对萃取率的影响较为明显。模型的计算结果与实验结果基本吻合,误差在20%以内。

The mass transfer characteristic of micropore dispersion rotating impering column （MDRIC） is studied. The influencing factors on MDRIC such as rotational speed, phase ratio and residence time, are researched. According to the law of conservation of mass,the mathematic model of MDRIC is established. The results show that extract efficiency tends to increase with increasing rotational speed, phase ratio and residence time. And rotational speed and phase ratio have greater effect on extract efficiency. The results calculated by the proposed agree well with the experimental data and the errors are within 20%.