Separation and transfer mechanism of vanadium from black shale leaching solution by supported liquid membrane using N235

被引：0

作者：

Liu H. ^{[1
,2
,3
]}

Zhang Y.-M. ^{[1
,2
,3
]}

Huang J. ^{[1
,2
,3
]}

机构：

[1] School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan

[2] State Environmental Protection Key Laboratory of Mineral Metallurgical Resources Utilization and Pollution Control, Wuhan University of Science and Technology, Wuhan

[3] Hubei Collaborative Innovation Center for High Efficient Utilization of Vanadium Resources, Wuhan University of Science and Technology, Wuhan

来源：

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2020年 / 30卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Black shale; N235; Separation; Supported liquid membrane; Transfer model;

D O I：

10.11817/j.ysxb.1004.0609.2020-36484

中图分类号：

学科分类号：

摘要：

To enhance the separation efficiency of vanadium from impurities, the highly selective separation of vanadium from multiple impurities and the transport mechanism of vanadium from a black shale leaching-solution, by a supported liquid membrane (SLM) using trialkylamine (N235) as the carrier, were investigated. The effects of parameters, such as feed-solution pH, carrier concentration, stripping-solution species, and diluent nature, were studied. The highest value of P is obtained at a feed solution pH of 1.8, at a carrier concentration of 10% (volume fraction), with a stripping solution of 0.6 mol/L Na2CO3, and with kerosene as the diluent. By enhancing the competition for extraction, 92.0% of the vanadium, 6.1% of the Si, 4.2% of the P, and less than 2.0% of the Fe, Al, K, and Mg are transported through the membrane after 13 h. The diffusion parameters and facilitated transport mechanism are evaluated using a first-order kinetic model. In the membrane stability study, after nine runs using the same membrane, the vanadium extraction can still be about 70%. In addition, the membrane can be successfully regenerated through impregnation again and the vanadium extraction increases to be 90.1%, which is only 1.9% lower than the vanadium extraction at the first run. © 2020, Science Press. All right reserved.

引用

页码：2216 / 2223

页数：7

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