Preparation of high hydrophilic H2TiO3 ion sieve for lithium recovery from liquid lithium resources

Sun, Jing; Li, Xiaowei; Huang, Yuhong; Luo, Guoan; Tao, Duan‐Jian; Yu, Jiangtao; Chen, Linlin; Chao, Yanhong; Zhu, Wenshuai

doi:10.1016/j.cej.2022.139485

Cited by 50 publications

(19 citation statements)

References 62 publications

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“…A thorough study of the efficiency of lithium manganese oxide as a Li + absorbent found that heating the brine from 10 to 80 o C increased the Li + adsorption efficiency from 15% to 70%, with a consequent increase in separation efficiency from other cations 52 . Other ion exchange resins also show improved absorption efficiency at higher brine temperature [121][122][123][124][125] . However, operational costs increase considerably if brine volumes on the order of 21,000 m 3 daily (Box 2) need to be heated to approximately 80 °C.…”

Section: Energy Inputmentioning

confidence: 99%

Environmental impact of direct lithium extraction from brines

Vera

Torres

Galli

et al. 2023

Nat Rev Earth Environ

130

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Evaporitic technology for lithium mining from brines has been questioned for its intensive water use, protracted duration and exclusive application to continental brines. In this Review, we analyse the environmental impacts of evaporitic and alternative technologies, collectively known as direct lithium extraction (DLE), for lithium mining, focusing on requirements for fresh water, chemicals, energy consumption and waste generation, including spent brines. DLE technologies aim to tackle the environmental and techno-economic shortcomings of current practice by avoiding brine evaporation. A selection of DLE technologies has achieved Li + recovery above 95%, Li + /Mg 2+ separation above 100, and zero chemical approaches. Conversely, only 30% of DLE test experiments were performed on real brines, and thus the effect of multivalent ions or large Na + /Li + concentration differences on performance indicators is often not evaluated. Some DLE technologies involve brine pH changes or brine heating up to 80 o C for improved Li + recovery, which require energy, fresh water and chemicals that must be considered during environmental impact assessments. Future research should focus on performing tests on real brines and achieving competitiveness in several performance indicators simultaneously. The environmental impact of DLE should be assessed from brine pumping to the production of the pure solid lithium product. Sections Lithium mining from continental brinesAs of 2022, worldwide, there are eight full-scale active facilities that produce lithium compounds from continental brines 9 and more are likely to become active before 2030 (Fig. 1a). The evaporitic technology (Fig. 1b) is currently in use at seven of those facilities 18,19 . Brines are Key points• Fresh water consumption of direct lithium extraction (DLE) needs to be urgently quantified. Many DLE technologies might require larger freshwater volumes than current evaporative practices, compromising their applicability in arid locations.• Environmental monitoring guidelines have been drafted with evaporitic technology in mind, but they should also be applied to the implementation of any DLE technology, which still consumes brine, uses fresh water and produces residues, the latter two hopefully at considerably lower volumes.Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author selfarchiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

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Section: Energy Inputmentioning

confidence: 99%

Environmental impact of direct lithium extraction from brines

Vera

Torres

Galli

et al. 2023

Nat Rev Earth Environ

130

View full text Add to dashboard Cite

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“…Typically, the convection diffusion step occurs relatively quickly, while the overall rate of ion exchange is controlled by one or more of the following steps: liquid film diffusion, particle diffusion, and chemical reaction. By increasing the rate of control steps, the overall ion exchange rate can be accelerated . The ion exchange mechanism can be analyzed using the interrupted contact method through the following experimental procedure: 0.5 g of HTO is added to a beaker, and 1500 mg·L –1 LiOH solution is added to a volume of 50 mL.…”

Section: Materials and Characterizationmentioning

confidence: 99%

“…By increasing the rate of control steps, the overall ion exchange rate can be accelerated. 26 The ion exchange mechanism can be analyzed using the interrupted contact method through the following experimental procedure: 0.5 g of HTO is added to a beaker, and 1500 mg•L −1 LiOH solution is added to a volume of 50 mL. The mixture is placed in a constant-temperature water bath at 35 °C and subjected to adsorption through vibration.…”

Section: Determination Of the Controlmentioning

confidence: 99%

High-Crystallinity Titanium Lithium Ion Sieve and Granulated Composite of High Stability and Porosity: Superb Adsorption and Recycling Performance

Hao,

Wang,

Wang

et al. 2023

Ind. Eng. Chem. Res.

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“…Recent studies discussed the correlation between hydrophilicity of ion sieves and their adsorption performance. A higher hydrophilicity can enhance ion desolvation capacity, thereby promoting the interaction between Li + ions and adsorption sites and improving the lithium extraction performance. , In addition, titanium-based ion sieves suffer from slow adsorption and desorption and display poor electrical conductivity . Therefore, there is an urgent need to accelerate the adsorption/desorption rate of titanium-based ion sieves while maintaining a high adsorption capacity.…”

Section: Introductionmentioning

confidence: 99%

Bifunctional Modification Enhances Lithium Extraction from Brine Using a Titanium-Based Ion Sieve Membrane Electrode

Zhang

Cheng

Qin

et al. 2023

ACS Appl. Mater. Interfaces

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Salt lake brine has become a promising lithium resource, but it remains challenging to separate Li + ions from the coexisting ions. We designed a membrane electrode having conductive and hydrophilic bifunctionality based on the H 2 TiO 3 ion sieve (HTO). Reduced graphene oxide (RGO) was combined with the ion sieve to improve electrical conductivity, and tannic acid (TA) was polymerized on the surface of ion sieve to enhance hydrophilicity. These bifunctional modification at the microscopic level improved the electrochemical performance of the electrode and facilitated ion migration and adsorption. Poly(vinyl alcohol) (PVA) was used as a binder to further intensify the macroscopic hydrophilicity of the HTO/RGO-TA electrode. Lithium adsorption capacity of the modified electrode in 2 h reached 25.2 mg g −1 , more than double that of HTO (12.0 mg g −1 ). The modified electrode showed excellent selectivity for Na + /Li + and Mg 2+ /Li + separation and good cycling stability. The adsorption mechanism follows ion exchange, which involves H + /Li + exchange and Li−O bond formation in the [H] layer and [HTi 2 ] layer of HTO.

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Preparation of high hydrophilic H2TiO3 ion sieve for lithium recovery from liquid lithium resources

Cited by 50 publications

References 62 publications

Environmental impact of direct lithium extraction from brines

Environmental impact of direct lithium extraction from brines

High-Crystallinity Titanium Lithium Ion Sieve and Granulated Composite of High Stability and Porosity: Superb Adsorption and Recycling Performance

Bifunctional Modification Enhances Lithium Extraction from Brine Using a Titanium-Based Ion Sieve Membrane Electrode

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