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International Journal of Analytical Chemistry Volume 2018 ,2018-06-07
A Study on DSLM Transporting the Rare Earth Metal La (III) with a Carrier of PC-88A
Research Article
Shibao Lu 1 Yan Wang 2 Liang Pei 3 Wei Li 1
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DOI:10.1155/2018/9427676
Received 2017-12-11, accepted for publication 2018-04-02, Published 2018-04-02
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摘要

This paper studies transmission behavior of La (III) in dispersed supported liquid membrane (DSLM) of dispersed phase constituted by dispersed supported liquid membrane solution and HCl solution with polyvinylidene fluoride membrane (PVDF) as support and kerosene as membrane solvent, with 2-ethyl hexyl phosphonic acid-single-2-ethyl hexyl ester (PC-88A) and two-(2-ethyl hexyl) phosphoric acid (D2EHPA) as mobile carrier. It also investigates the influence of La (III) transmission by the material liquid acidity, initial concentration of La (III), HCI concentration, membrane solution, and HCI solution volume ratio, resolving agent and carrier concentration, as well as concluding that the optimal transmission and separation conditions are dispersed phase of 4.00 mol/L HCl concentration, 30:30 volume ratio of membrane solution, and HCl solution, within 0.160 mol/L controlled carrier concentration and 4.00 pH value of material liquid. Under the optimal conditions, the La (III) initial concentration of material liquid phase is 8.00 × 10–5 mol/L mol/L, 125 min, and 93.9% migration rate. Under the condition of unchanged acidity of resolving phase, HCL, H2SO4, and HNO3 as resolving agent, at 125th min, the migration rates of La (III) are 93.9%, 94.0%, and 87.8%, respectively. HCl solution, H2SO4 solution, and HNO3 solution have a certain effect on the La (III) resolution, of which 4.00 mol/L HCl solution and 2.00 mol/L H2SO4 solution are better. The effect of HNO3 is slightly lower than HCl and H2SO4.

授权许可

Copyright © 2018 Shibao Lu et al. 2018
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

图表

Schematic diagram of DSLM apparatus.

Effect of pH in feed phase on transport of La (III).

Effect of HCl concentration in dispersion phase on transport of La (III).

Effect of volume ratio of membrane solution and HCl solution on transport of La (III).

Effect of initial concentrations on transport of La(III).

Effect of different stripping agents on transport of La(III).

Effect of different carrier concentration on migration of La (III).

通讯作者

Yan Wang.Development and Planning Division, Tongji University, 1239 Siping Road, Shanghai, China, tongji.edu.cn.wylady@tongji.edu.cn

推荐引用方式

Shibao Lu,Yan Wang,Liang Pei,Wei Li. A Study on DSLM Transporting the Rare Earth Metal La (III) with a Carrier of PC-88A. International Journal of Analytical Chemistry ,Vol.2018(2018)

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