Mass transfer characteristics of citric acid extraction by hollow fiber renewal liquid membrane
Mass transfer characteristics of citric acid extraction by hollow fiber renewal liquid membrane
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中空纤维更新液膜萃取柠檬酸的传质特性
DOI：
10.1016/j.cej.2008.03.020
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发表时间：
2009-02
影响因子：
15.1
通讯作者：
Ren, Zhongqi
中科院分区：
文献类型：
--
作者：
Zhang, Weidong;Li, Haoshu;Lin, Wei;Ren, Zhongqi
采用一种新的液膜技术--中空纤维更新液膜（HFRLM）从稀溶液中同时提取和浓缩柠檬酸。以30%N235 +20%正辛醇+50%煤油的有机相为液膜相，NaOH为反萃取相。实验进行了作为操作模式的函数，在有机相中的载体浓度，在进料相中的初始柠檬酸浓度，在汽提相的NaOH浓度等，结果表明，HFRLM过程是非常稳定的。柠檬酸从膜相向反萃取相的迁移是该过程的速率控制步骤。流动通过模块的内腔侧的汽提相和有机相的搅拌混合物可以提供更高的传质速率。与回收实验的传输研究表明，HFRLM是一种很有前途的回收方法，用于分离和浓缩的化合物从稀溶液。
A new liquid membrane technique, hollow fiber renewal liquid membrane (HFRLM), is used for simultaneous extracting and concentrating citric acid from dilute solutions. The organic phase of 30% N235+20% n-octanol+50% kerosene was used as liquid membrane phase, NaOH as stripping phase. Experiments were performed as a function of operation mode, carrier concentration in the organic phase, initial citric acid concentration in the feed phase, NaOH concentration in the stripping phase, etc. The results showed that the HFRLM process was very stable. The transport of citric acid from membrane phase to the stripping phase was the rate-controlling step for this process. The stirred mixture of the stripping phase and the organic phase flowed through the lumen side of the module could provide a higher mass transfer rate. The transport studies with a recycling experiment indicated that HFRLM was a promising recovery method for separation and concentration of compounds from dilute solutions.
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DOI：
--
发表时间：
2003
期刊：
Membrane Science and Technology
影响因子：
--
作者：
Gu Zhongmao
通讯作者：
Gu Zhongmao
影响因子：
16
作者：
P. Patnaik
通讯作者：
P. Patnaik
影响因子：
4.2
作者：
R. Juang;Li-Jiun Chen
通讯作者：
R. Juang;Li-Jiun Chen
DOI：
--
发表时间：
2002
期刊：
Journal of Beijing Polytechnic University
影响因子：
--
作者：
Yao Shi-zhong;Ma Chong-fang
通讯作者：
Yao Shi-zhong;Ma Chong-fang
DOI：
--
发表时间：
1987
期刊：
--
影响因子：
--
作者：
S. C. Boey;M. Cerro;D. Pyle
通讯作者：
S. C. Boey;M. Cerro;D. Pyle