PERMEATION AND SEPARATION OF ZINC AND COPPER BY SUPPORTED LIQUID MEMBRANES USING BIS(2-ETHYLHEXYL)PHOSPHORIC ACID AS A MOBILE CARRIER

被引：29

作者：

JUANG, RS

机构：

[1] Department of Chemical Engineering, Yuan-Ze Institute of Technology, 32026, Taiwan, Nei-Li, Taoyuan

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1993年 / 32卷 / 05期

关键词：

D O I：

10.1021/ie00017a019

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The permeation of zinc and copper ions from sulfate solutions through supported liquid membranes containing bis(2-ethylhexyl)phosphoric acid (D2EHPA) dissolved in kerosene as a mobile carrier was investigated at 25-degrees-C. A permeation model was presented taking into account the aqueous film diffusion of metal ions toward and out of the membrane and the membrane diffusion of D2EHPA and its metal complexes. It was found that the calculated permeation rates were in good agreement with the measured results. Higher selectivity in the separation of zinc and copper was obtained when the diffusional resistance in the membrane phase was dominant.

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页码：911 / 916

页数：6

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