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吸附质大小对吸附树脂粒内扩散行为的影响(Ⅰ)——大孔聚苯乙烯型吸附树脂粒内扩散机制的考察 被引量:1

The Effect of Adsorbate Molecules on the Particle Diffusion of the Adsorption Resin(Ⅰ)
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摘要 本文详细考察了大孔聚苯乙烯型吸附树脂对不同大小吸附质分子的吸附动力学行为,当吸附过程为粒扩散控制时,树脂孔径与分子尺寸的相对大小不仅决定了粒扩散速度的大小,也影响了粒扩散的控制机制,随着吸附质分子尺寸的增加,决定粒扩散速度的控速步骤也逐渐由表面扩散转向孔扩散.此外,还利用建立的扩散方程,测定了树脂吸附不同大小的吸附质时的粒扩散常数B和有效粒扩散系数De.
出处 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 2001年第z1期240-244,共5页 Chemical Journal of Chinese Universities
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参考文献5

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同被引文献9

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  • 9严希康,庞国强,王雩,杨雅琴,沈林南.用大网格吸附剂提取红霉素[J].中国抗生素杂志,1991,16(4):266-270. 被引量:11

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