Preparation of lithium carbonate from waste lithium solution through precipitation and wet conversion methods

Shin, Junho; Jeong, Jae‐Min; Lee, Jin Bae; Cho, Hey-Jin; Kim, Young Ho; Ryu, Taegong

doi:10.1016/j.hydromet.2022.105863

Cited by 16 publications

(6 citation statements)

References 29 publications

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“…The morphology of lithium carbonate is a multiply rounded plate shape with a relatively flat surface and exists in clusters. The appearance of the precipitates shows an agglomeration state, which is in good agreement with the reported data (Shin et al 2022).…”

Section: Effect Of the Physical State Of Na2co3 And Reaction Timesupporting

confidence: 93%

Recovery of iron phosphate and lithium carbonate from sulfuric acid leaching solutions of spent LiFePO4 batteries by chemical precipitation

Jing,

Tran,

Lee

2024

Physicochem. Probl. Miner. Process.

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The recycling of lithium and iron from spent lithium iron phosphate (LiFePO4) batteries has gained attention due to the explosive growth of the electric vehicle market. To recover both of these metal ions from the sulfuric acid leaching solution of spent LiFePO4 batteries, a process based on precipitation was proposed in this study. Since ferric and ferrous ions coexisted in the leaching solution, all the ferrous ions were first oxidized to ferric ions by adding H2O2 to the leaching solution. About 99% iron(III) was recovered as iron phosphate by adjusting the solution pH to 2 at 25 oC for 30 mins. After the precipitation of iron phosphate, the remaining Li(I) in the filtrate was recovered as lithium carbonate by precipitation with Na2CO3 as a precipitant. Addition of acetone to the filtrate at room temperature greatly enhanced the precipitation percentage of Li(I). Moreover, solid Na2CO3 was better than Na2CO3 solution in precipitating Li(I). About 95% of lithium ions was recovered as carbonate precipitates under the optimum conditions: solution pH = 11, 3.0 molar ratio of solid Na2CO3 to Li(I), 7/5(v/v) volume ratio of acetone to the filtrate, 25 oC, 300 rpm for 2 hrs.

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Section: Effect Of the Physical State Of Na2co3 And Reaction Timesupporting

confidence: 93%

Recovery of iron phosphate and lithium carbonate from sulfuric acid leaching solutions of spent LiFePO4 batteries by chemical precipitation

Jing,

Tran,

Lee

2024

Physicochem. Probl. Miner. Process.

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“…The remaining solution containing Li with citric acid (1.0 mol/L) was evaluated to obtain Li phosphate, as depicted in eq . The process is common in inorganic acid media, − but it was observed that there was no effect of citric acid on Li precipitation, that is, the organic acid had no effect on precipitation efficiency. The same results were obtained for the stoichiometric proportion of Li and PO 4 2– between 30 and 90 °C. …”

Section: Resultsmentioning

confidence: 99%

Sustainable Approach for Critical Metals Recovery through Hydrometallurgical Processing of Spent Batteries Using Organic Acids

Martins,

Rovani,

Botelho Junior

et al. 2023

Ind. Eng. Chem. Res.

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Recycling is the bottom line to promote the circularity of the materials into the closed loop. Among the Li-ion batteries, the LiCoO 2 -cathode type is used in a few vehicles but mostly in electric equipment. This study aimed to design a recycling process for LiCoO 2 -pouch batteries. The entire process was designed using organic acids. The cells were milled and physically separated. Leaching experiments were performed with citric acid. No reducing agent was necessary, and all Co and Li were leached using 1 mol/L of citric acid at 90 °C with a solid−liquid ratio of 1/10 for 2 h. Co was separated using oxalic acid at 50 °C for 30 min in a Co/oxalic acid molar ratio of 1:2. Resynthesis of the cathode was possible, producing a similar material directly from the leach solution, which opens possibilities for the future. The present study fits SDGs 7,9,11, 12,and 13.

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“…This facilitates the transfer of solutes from the aqueous phase to the organic phase, where solubility for the solute is greater, achieving solute trans-phase separation [72,73]. Commonly studied extractants include neutral phosphorus-containing Junho Shin et al [70] used waste lithium solution as a raw material to prepare concentrated lithium solution by an integrated precipitation-reflow process, which separates lithium ions into Li 3 PO 4 by precipitation, and then converts it into lithium solution by reflux reaction with metal chloride solution. The method here is simple and environmentally friendly and does not require acid leaching of insoluble lithium compounds to prepare concentrated lithium solution.…”

Section: Solvent Extraction Methodsmentioning

confidence: 99%

“…Junho Shin et al [ 70 ] used waste lithium solution as a raw material to prepare concentrated lithium solution by an integrated precipitation-reflow process, which separates lithium ions into Li 3 PO 4 by precipitation, and then converts it into lithium solution by reflux reaction with metal chloride solution. The method here is simple and environmentally friendly and does not require acid leaching of insoluble lithium compounds to prepare concentrated lithium solution.…”

Section: The Current Lithium Extraction Process and Its Advantages An...mentioning

confidence: 99%

“… ( A ) Flowchart of the process developed to recover lithium as a carbonate from Uyuni brine [ 65 ], reproduced with permission from Elsevier , 2012; ( B ) schematic diagram of the aluminate precipitation method [ 35 ], reproduced with permission from Elsevier , 2018; ( C ) flowchart of the co-preparation of layered double hydroxides (LDHs) and lithium carbonate [ 67 ], reproduced with permission from Elsevier , 2018; ( D ) co-precipitation [ 68 ], reproduced with permission from Elsevier , 2018; ( E ) co-precipitation with hydrothermal duration [ 69 ], reproduced with permission from Elsevier , 2022; ( F ) SEM images of the initial Li + concentration: ( a ) 1000 mg·L −1 and ( b ) SEM images of Li 3 PO 4 at 3000 mg·L −1 [ 70 ], reproduced with permission from Elsevier , 2022. …”

Section: Figurementioning

confidence: 99%

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Progress and Prospect of Ion Imprinting Technology in Targeted Extraction of Lithium

Zhi,

Duan,

Zhang

et al. 2024

Polymers

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Ion Imprinting Technology (IIT) is an innovative technique that produces Ion-Imprinted polymers (IIPs) capable of selectively extracting ions. IIPs exhibit strong specificity, excellent stability, and high practicality. Due to their superior characteristics, the application of IIPs for lithium resource extraction has garnered significant attention. This paper discusses the following aspects based on existing conventional processes for lithium extraction and the latest research progress in lithium IIPs: (1) a detailed exposition of existing lithium extraction processes, including comparisons and summaries; (2) classification, comparison, and summarization of the latest lithium IIPs based on different material types and methods; (3) summarization of the applications of various lithium IIPs, along with a brief description of future directions in the development of lithium IIP applications. Finally, the prospects for targeted recovery of lithium resources using lithium IIPs are presented.

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Preparation of lithium carbonate from waste lithium solution through precipitation and wet conversion methods

Cited by 16 publications

References 29 publications

Recovery of iron phosphate and lithium carbonate from sulfuric acid leaching solutions of spent LiFePO4 batteries by chemical precipitation

Recovery of iron phosphate and lithium carbonate from sulfuric acid leaching solutions of spent LiFePO4 batteries by chemical precipitation

Sustainable Approach for Critical Metals Recovery through Hydrometallurgical Processing of Spent Batteries Using Organic Acids

Progress and Prospect of Ion Imprinting Technology in Targeted Extraction of Lithium

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