Highly efficient extraction of lithium from salt lake brine by LiAl-layered double hydroxides as lithium-ion-selective capturing material

Sun, Ying; Guo, Xiaoyu; Hu, Shaofang; Xiang, Xu

doi:10.1016/j.jechem.2018.09.022

Cited by 75 publications

(28 citation statements)

References 51 publications

(63 reference statements)

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“…More recently, N-butyl pyridinium bis[(trifluoromethyl)sulfonyl]imide solution was found to have a high efficiency for lithium extraction from brines [47]. Other processes involving, for example, LiAl-layered double hydroxides as lithium-ion-selective capturing material, were proven to have lithium yields over 96% [48]. Concerning the lithium production from brines, the process revolves around concentrating the brines up to 6 wt% Li and removing the impurities one after the other (Figure 12).…”

Section: General Flow Sheetsmentioning

confidence: 99%

Spodumene: The Lithium Market, Resources and Processes

et al. 2019

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This literature review gives an overview of the lithium industry, including the lithium market, global resources, and processes of lithium compounds production. It focuses on the production of lithium compounds from spodumene minerals. Spodumene is one of the most critical minerals nowadays, due to its high lithium content and high rate of extraction. Lithium is one of the most sought-after metals, due to the ever-growing demand for lithium-ion batteries (LiBs). The data on lithium extraction from minerals is scattered through years of patents, journal articles, and proceedings; hence, requiring an in-depth review, including the comprehension of the spodumene phase system, the phase conversion processes, and the lithium extraction processes.

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Section: General Flow Sheetsmentioning

confidence: 99%

Spodumene: The Lithium Market, Resources and Processes

et al. 2019

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“…[ 3,5 ] Reaction‐coupled separation has also been exploited for the recovery of magnesium and lithium resources. [ 12,13 ] In addition, significant progress has been made in the separation of fine chemicals through membrane‐based separation technologies. [ 14 ] Among them, nanofiltration membranes are emerging as a highly efficient and environmentally friendly alternative for lithium extraction through the combination of size sieving and charge repulsion effects.…”

Section: Introductionmentioning

confidence: 99%

A Nano‐Heterogeneous Membrane for Efficient Separation of Lithium from High Magnesium/Lithium Ratio Brine

Peng

Zhen

2021

Adv Funct Materials

181

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Lithium extraction from salt lake brines is highly demanded to circumvent the lithium supply shortage. However, polymer nanofiltration membranes suffer from low lithium permeability while nanofluidic devices are hindered by complicated preparation and miniaturized scales despite high permeability. Here, the authors report a facile strategy to prepare positively charged nanofiltration membranes for ultrapermeable and selective separation of lithium ions from concentrated magnesium/lithium mixtures. A new electrolyte monomer (diaminoethimidazole bromide, DAIB) containing bidentate amine groups is designed to modify pristine polyamide composite membranes. Structure characterizations and simulations show that the DAIB modification brings about nano-heterogeneity that not only improves surface hydrophilicity, but also reduces water transport resistance through the ≈100 nm thick separation layer. Water permeance of the modified membrane improves fivefold and is coupled with good stability in 200-h continuous nanofiltration. It exhibits high lithium flux (0.7 mol m −2 h −1) for brines (Mg 2+ /Li + ratio 20) at 6 bar operation pressure.

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“…This method allows the concentration of reverse osmosis (RO) retentates up to 150–300 g dm −3 , which makes it possible to significantly reduce discharge of moderately concentrated (up to 30 g dm −3 ) effluents into the environment and helps to reduce the cost and improve the environmental feasibility of hybrid RO+ED processes [ 23 ]. Another important practical problem that many laboratories are trying to solve is the development of hybrid membrane technologies for the extraction of lithium from seawater [ 24 ] and salt lakes [ 25 ], as well as from industrial solutions [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Transport and Electrochemical Characteristics of CJMCED Homogeneous Cation Exchange Membranes in Sodium Chloride, Calcium Chloride, and Sodium Sulfate Solutions

et al. 2020

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Recently developed and produced by Hefei Chemjoy Polymer Material Co. Ltd., homogeneous CJMC-3 and CJMC-5 cation-exchange membranes (CJMCED) are characterized. The membrane conductivity in NaCl, Na2SO4, and CaCl2 solutions, permeability in respect to the NaCl and CaCl2 diffusion, transport numbers, current–voltage curves (CVC), and the difference in the pH (ΔpH) of the NaCl solution at the desalination compartment output and input are examined for these membranes in comparison with a well-studied commercial Neosepta CMX cation-exchange membrane produced by Astom Corporation, Japan. It is found that the conductivity, CVC (at relatively low voltages), and water splitting rate (characterized by ΔpH) for both CJMCED membranes are rather close to these characteristics for the CMX membrane. However, the diffusion permeability of the CJMCED membranes is significantly higher than that of the CMX membrane. This is due to the essentially more porous structure of the CJMCED membranes; the latter reduces the counterion permselectivity of these membranes, while allowing much easier transport of large ions, such as anthocyanins present in natural dyes of fruit and berry juices. The new membranes are promising for use in electrodialysis demineralization of brackish water and natural food solutions.

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Highly efficient extraction of lithium from salt lake brine by LiAl-layered double hydroxides as lithium-ion-selective capturing material

Cited by 75 publications

References 51 publications

Spodumene: The Lithium Market, Resources and Processes

Spodumene: The Lithium Market, Resources and Processes

A Nano‐Heterogeneous Membrane for Efficient Separation of Lithium from High Magnesium/Lithium Ratio Brine

Transport and Electrochemical Characteristics of CJMCED Homogeneous Cation Exchange Membranes in Sodium Chloride, Calcium Chloride, and Sodium Sulfate Solutions

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