A strategy for the dissolution and separation of rare earth oxides by novel Brønsted acidic deep eutectic solvents

Chen, Wenjun; Jiang, Jingyun; Xue, Lan; Zhao, Xinhui; Mou, Hongyu; Mu, Tiancheng

doi:10.1039/c9gc00944b

Cited by 103 publications

(70 citation statements)

References 43 publications

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“…[175] "Hydrophobic DES" is used when both components are hydrophobic [176] , and "Brønsted acid DES" implies that the HBA is a Brønsted acid instead of the more commonly used quaternary ammonium salt. [177] These solvents have been recently introduced to the metal and battery recycling flowsheets as successful media for electrochemical recovery, [178,179] direct leaching of metals (Li [180] , Ni, Co) from LIB cathodes, and even the dissolution of the polymeric binders in cathodes. [181] Ethylene glycol, [179] urea [182][183][184] based DES have the physical properties required to act as leaching agent and electrolyte for the electrochemical recovery of metals from LIBs.…”

Section: Deep Eutectic Solventsmentioning

confidence: 99%

Recycling of Lithium‐Ion Batteries—Current State of the Art, Circular Economy, and Next Generation Recycling

Neumann

Petraniková

Meeus

et al. 2022

Advanced Energy Materials

318

186

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Being successfully introduced into the market only 30 years ago, lithium‐ion batteries have become state‐of‐the‐art power sources for portable electronic devices and the most promising candidate for energy storage in stationary or electric vehicle applications. This widespread use in a multitude of industrial and private applications leads to the need for recycling and reutilization of their constituent components. Improving the “recycling technology” of lithium ion batteries is a continuous effort and recycling is far from maturity today. The complexity of lithium ion batteries with varying active and inactive material chemistries interferes with the desire to establish one robust recycling procedure for all kinds of lithium ion batteries. Therefore, the current state of the art needs to be analyzed, improved, and adapted for the coming cell chemistries and components. This paper provides an overview of regulations and new battery directive demands. It covers current practices in material collection, sorting, transportation, handling, and recycling. Future generations of batteries will further increase the diversity of cell chemistry and components. Therefore, this paper presents predictions related to the challenges of future battery recycling with regard to battery materials and chemical composition, and discusses future approaches to battery recycling.

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Section: Deep Eutectic Solventsmentioning

confidence: 99%

Recycling of Lithium‐Ion Batteries—Current State of the Art, Circular Economy, and Next Generation Recycling

Neumann

Petraniková

Meeus

et al. 2022

Advanced Energy Materials

318

186

View full text Add to dashboard Cite

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“…In addition to their applications in catalysis, , electrochemistry, , and metal processing, DESs have been used in chemical and biological syntheses. In particular, the use of DESs in dissolution, extraction, and separation has drawn the most attention, including in gas adsorption, metal-oxide dissolution, drug dissolution, biodiesel purification, and natural-product extraction . The traditional approach is to synthesize DESs and subsequently use them for dissolution and separation.…”

Section: Introductionmentioning

confidence: 99%

Extraction of Natural Products by Direct Formation of Eutectic Systems

Liu

Cao

et al. 2021

ACS Sustainable Chem. Eng.

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A eutectic system forms when two or more substances reorganize into a superlattice that has a lower melting point than each of the individual components. Deep eutectic solvents (DESs) are environmentally friendly solvents often used for the dissolution, extraction, and separation of chemical compounds. Instead of using DESs for extraction, hydrogen bond acceptors (HBAs) or hydrogen bond donors (HBDs) can be used to form a deep eutectic system (DESys) directly with the target compound for one-step dissolution and extraction. The feasibility of direct formation of a DESys for high efficiency extraction was demonstrated with turmeric as the extraction target. The data showed that the target compounds indeed directly interacted with HBAs (and for other compounds, HBDs), which increases process efficiency and reduces the time required for target compounds to compete with another HBD (or HBA) to form hydrogen bonds. In addition, the results showed that the target compounds have different physicochemical properties in DESys and DES, which resulted in different analytical behaviors of the targets. This research may lead to changes in how eutectic systems are used and the development of new applications based on the formation of DESys.

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“…4 The majority of HBAs are quaternary ammonium or phosphonium salts, [5][6] while HBDs are typically comprised of metal halides, carbohydrates, amides, alcohols, or carboxylic acids. 3,7 DESs have been applied in a number of applications such as solvents in the extraction of metals, [8][9] bio-catalysis, [10][11][12][13] carbon dioxide capture, [14][15] biodiesel production, [16][17][18] extraction of natural compounds, [19][20][21] and desulfurization of fuels. [22][23][24] They have garnered considerable attention over the last decade and a half as potential alternatives to ionic liquids (ILs).…”

Section: Introductionmentioning

confidence: 99%

Elucidating the Role of Hydrogen Bond Donor and Acceptor on Solvation in Deep Eutectic Solvents Formed by Ammonium/Phosphonium Salts and Carboxylic Acids

Farooq

Odugbesi

Abbasi

et al. 2020

ACS Sustainable Chem. Eng.

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Deep eutectic solvents (DESs) constitute a rapidly emerging class of sustainable liquids that have been widely studied and employed in chemical separations, catalysis, and electrochemistry. The unique physico-chemical and solvation properties of DESs can be highly tailored by choosing the appropriate hydrogen bond acceptor (HBA) and hydrogen bond donor (HBD). Understanding the role of the HBA and HBD on the multiple solvation interactions in DESs is important to enable their judicious selection for particular applications. This work constitutes the first study to exploit chromatography to measure solute-solvent interactions of DESs using a wide array of known probe molecules. The constituent components of 20 DESs, formed by ammonium and phosphonium-based salts and carboxylic acids, are systematically modulated to delineate the contribution of the HBA and HBD towards individual solvation properties. Solute-solvent interactions measured in this study are used to interpret and explain the performance of DESs in desulfurization of fuels and extraction of natural products. The results from this study can be used to predict and understand the performance of DESs in various chemical processes where solvation interactions heavily influence outcomes.

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A strategy for the dissolution and separation of rare earth oxides by novel Brønsted acidic deep eutectic solvents

Abstract: The dissolution and separation of rare earth oxides were realized by novel Brønsted acidic deep eutectic solvents.

Cited by 103 publications

References 43 publications

Recycling of Lithium‐Ion Batteries—Current State of the Art, Circular Economy, and Next Generation Recycling

Recycling of Lithium‐Ion Batteries—Current State of the Art, Circular Economy, and Next Generation Recycling

Extraction of Natural Products by Direct Formation of Eutectic Systems

Elucidating the Role of Hydrogen Bond Donor and Acceptor on Solvation in Deep Eutectic Solvents Formed by Ammonium/Phosphonium Salts and Carboxylic Acids

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