Analysis of the Transport Rates of Citric Acid through a Supported Liquid Membrane Containing Tri-n-octylamine
Analysis of the Transport Rates of Citric Acid through a Supported Liquid Membrane Containing Tri-n-octylamine
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DOI：
10.1021/ie950468o
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发表时间：
1996-05
影响因子：
4.2
通讯作者：
R. Juang;Li-Jiun Chen
中科院分区：
文献类型：
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作者：
R. Juang;Li-Jiun Chen
研究了柠檬酸在含三正辛胺支撑液膜中的迁移行为。反萃取相是碳酸钠溶液或去离子水。提出了一个考虑水膜扩散、界面化学反应和膜扩散的传质模型。计算的比率被认为是在良好的协议与测量的（平均标准误差，12%）。在考察的条件下，结果表明，它的传输过程是由混合界面化学反应和膜扩散。温度和水不溶性的有机酸添加在膜相上的传输速率的影响进行了研究。
The transport of citric acid from aqueous solutions through a supported liquid membrane containing tri-n-octylamine was studied. The strip phase was either a sodium carbonate solution or deionized water. A transport model was proposed considering aqueous film diffusion, interfacial chemical reaction, and membrane diffusion. The calculated rates were found to be in good agreement with the measured ones (average standard error, 12%). Under the conditions examined, it was shown that the transport process was governed by mixed interfacial chemical reaction and membrane diffusion. The effects of temperature and a water-insoluble organic acid added in the membrane phase on transport rate were also investigated.