METAL SORPTION WITH EXTRACTANT-IMPREGNATED MACROPOROUS RESINS .2. CHEMICAL-REACTION AND PARTICLE DIFFUSION KINETICS

被引：54

作者：

JUANG, RS

LIN, HC

机构：

[1] Department of Chemical Engineering, Yuan-Ze Institute of Technology Nei-Li, Taoyuan

来源：

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY | 1995年 / 62卷 / 02期

关键词：

CHEMICAL REACTION AND PARTICLE DIFFUSION KINETICS; ZINC SORPTION; EXTRACTANT-IMPREGNATED RESIN; DI(2-ETHYLHEXYL)PHOSPHORIC ACID;

D O I：

10.1002/jctb.280620205

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The rates of the sorption of zinc ions from aqueous sulfate solutions with di(2-ethylhexyl) phosphoric acid-impregnated Amberlite XAD macroporous resins were measured in finite bath by a batch-contact time method. The sorption process was initially found to be controlled by a combined chemical reaction and particle diffusion process using a provable modified shrinking,core model. A more rigorous model based on Fick's law was then developed to elucidate the sorption mechanism, and a procedure was suggested to simultaneously determine the reaction rate constant and effective particle diffusivity.

引用

页码：141 / 147

页数：7

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