A Study on Neodymium Recovery from Aqueous Solutions for Designing a New Generation of Sandwich Liquid Membrane

Q2 Materials Science

Journal of Membrane Science and Research Pub Date : 2019-04-01 DOI:10.22079/JMSR.2018.93621.1214

P. Argurio, A. Tagarelli, R. Molinari

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引用次数: 2

Abstract

Liquid Membrane (LM) based processes, as Supported Liquid Membranes (SLMs), have been proposed, for over 30 years, as eﬀective methods for the selective separation of inorganic/organic species from diﬀerent water streams. The industrial use of SLMs has been limited mainly by their insufcient stability. To investigate on the main cause of system destabilization and the optimal conditions for mass transport, a good reference system is the traditional SLM. To this aim the recovery of neodymium (Nd) from acidic media by a traditional SLM has been studied, giving particular attention to permeation and stability. The results clearly evidenced that system stability was strongly inﬂuenced by the solubilization of the carrier in the aqueous phases. The consideration and the experimental results reported in this work give useful information to shift the next research step versus the development of a 2nd generation of SwLM able to give satisfactory system performance in view of industrial application, such as Nd as well as rare earth elements or salt recovery from aqueous media.

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从水溶液中回收钕用于设计新一代夹层液膜的研究

基于液膜（LM）的工艺，即支撑液膜（SLM），作为从不同水流中选择性分离无机/有机物质的有效方法，已经被提出了30多年。SLM的工业应用主要受到其不稳定的限制。为了研究系统失稳的主要原因和大规模运输的最佳条件，一个很好的参考系统是传统的SLM。为此，研究了通过传统SLM从酸性介质中回收钕（Nd）的方法，特别注意渗透性和稳定性。结果清楚地证明，载体在水相中的溶解强烈影响了系统的稳定性。这项工作中报告的考虑因素和实验结果为下一步的研究提供了有用的信息，与开发第二代SwLM相比，SwLM能够在工业应用方面提供令人满意的系统性能，如Nd以及稀土元素或从水介质中回收盐。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Membrane Science and Research Materials Science-Materials Science (miscellaneous)

CiteScore

4.00

自引率

0.00%

发文量

审稿时长

8 weeks

期刊介绍： The Journal of Membrane Science and Research (JMSR) is an Open Access journal with Free of Charge publication policy, which provides a focal point for academic and industrial chemical and polymer engineers, chemists, materials scientists, and membranologists working on both membranes and membrane processes, particularly for four major sectors, including Energy, Water, Environment and Food. The journal publishes original research and reviews on membranes (organic, inorganic, liquid and etc.) and membrane processes (MF, UF, NF, RO, ED, Dialysis, MD, PV, CDI, FO, GP, VP and etc.), membrane formation/structure/performance, fouling, module/process design, and processes/applications in various areas. Primary emphasis is on structure, function, and performance of essentially non-biological membranes.