Selective recovery of rare earth elements from e-waste via ionic liquid extraction: A review

Kaim, Vishakha; Rintala, Jukka; He, Chao

doi:10.1016/j.seppur.2022.122699

Cited by 41 publications

(13 citation statements)

References 108 publications

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“…The second most cited publication was Separation and Purification Technology, which generated 715 citations for the three articles published in 2017, 2022, and 2023. All the three articles were review papers dealing with the selective recovery of rare earth elements from e-waste via ionic liquid extraction [19], critical assessment of chemical route for generation of energy and valuable products coupled with metal recovery [20], and recovery and recycling of lithium [21]. In Table 2, the top 10 of the most cited documents are presented, with a total of 4589 citations, representing 41.16% out of the total citations.…”

Section: Most Cited Publicationsmentioning

confidence: 99%

“…The rare earth elements include 17 elements from the periodic table of Mendeleev: 15 lanthanides (with atomic weights from 57 to 71 in the periodic system), as well as scandium and yttrium. Yttrium with an atomic weight of 39 and scandium are often considered to be in the REM group since they have the same chemical and physical properties and are also found in the same deposits [19,52]. Cerium, yttrium, lanthanum, and neodymium are found most frequently in the earth's crust [53,54].…”

Section: Co-occurrence Keyword Networkmentioning

confidence: 99%

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Global Research Progress and Trends on Critical Metals: A Bibliometric Analysis

2023

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In the perspective of observing the latest worldwide and European strategies toward green transition and delivering a secured access to local resources, the objective of this study was to analyze the research progress on critical materials and, more specific, critical metals and review the future research hot-topics for critical metals. Consequently, a bibliometric analysis for the assessment of the current state of the art research, future trends as well as evolution through time of the critical metals research was performed in the present work. The study included four phases of work: (i) search string selection, (ii) data collection, (iii) data processing, and (iv) data interpretation. A total of 433 publications on critical metals were collected from Scopus database between 1977 and 2023, with an increasing yearly trend and a burst in 2013. The data retrieved showed a significant increase in publications related to the topic in the last 10 years. The results show that research interest is concentrated around six critical areas: (i) bioleaching as an important process of critical metal recovery, (ii) circular economy concepts and recovery of critical metals by urban mining from e-waste, (iii) resource recovery from waste landfills as urban mines, (iv) targeted studies on various critical elements (copper, zinc, gallium, silver, lithium), (v) rare elements as industry vitamins and, (vi) coal deposits and coal ashes as an alternative source of critical metals. This analysis could provide important guidance for further directions on the development of research for recovery of critical metals.

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Section: Most Cited Publicationsmentioning

confidence: 99%

Section: Co-occurrence Keyword Networkmentioning

confidence: 99%

Global Research Progress and Trends on Critical Metals: A Bibliometric Analysis

2023

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“…However, ionic liquids can be synergistic additives rather than bulk diluents for separation of f -elements. ,− We hypothesize that the combination of N,O-donor extractants with a hydrophobic anion NTf 2 – (bis[(trifluoromethyl) sulfonyl]imide) , should improve the extraction parameters of the system for the separation of An(III) and Ln(III). , …”

Section: Introductionmentioning

confidence: 99%

Ionic Liquid as a N,O-Donor Ligand-Based Extraction System Modifier: Establishing the Mechanism of Am(III)-Selectivity Increasing

Gerasimov,

Pozdeev,

Evsiunina

et al. 2024

Inorg. Chem.

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In this work, we studied the extraction systems for the separation f-elements based on the tetradentate N,O-donor ligand di(N-ethyl-4-ethylanilide) 2,2′-dipyridyl-6,6′-dicarboxylic acid (L). The organic phase of these systems was perspective fluorine-containing organic solvents−metanitrobenzotrifluoride (F-3), ionic liquid C 4 mimNTf 2 (IL), and their mixture. The increase of Am(III) selectivity in the presence of Ln(III) in cases of the diluent mixture was shown. The mechanism of the f-element complexation leading to the improved properties of the extraction systems was studied by UV−visible, Raman-spectroscopy, XRDstudy, and density functional theory calculations.

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“…One type of extensively studied application of ILs is to replace traditional organic solvents in different separation processes including gas absorption, − extractive desulfurization and denitrogenation of fuel oils, , extraction of bioactive compounds, , extraction of metal ions, − removal of contaminants from wastewater, − etc . Another type is to employ ILs in different organic transformations as reaction media and/or as catalysts to modify catalytic activity and recyclability, for example, substitutions, additions, acid-catalyzed reactions, base-catalyzed reactions, and transition-metal-catalyzed reactions. ,− A third type is to utilize ILs for energy storage and conversion materials and devices, such as phase change materials, − electrolyte and electrode materials for batteries, and supercapacitors. − It is hardly possible to present a full list of potential applications of ILs, and the ones mentioned here are only some typical examples.…”

Section: Introductionmentioning

confidence: 99%

Computer-Aided Molecular Design of Ionic Liquids as Advanced Process Media: A Review from Fundamentals to Applications

Song,

Chen,

Cheng

et al. 2023

Chem. Rev.

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The unique physicochemical properties, flexible structural tunability, and giant chemical space of ionic liquids (ILs) provide them a great opportunity to match different target properties to work as advanced process media. The crux of the matter is how to efficiently and reliably tailor suitable ILs toward a specific application. In this regard, the computer-aided molecular design (CAMD) approach has been widely adapted to cover this family of high-profile chemicals, that is, to perform computer-aided IL design (CAILD). This review discusses the past developments that have contributed to the state-of-the-art of CAILD and provides a perspective about how future works could pursue the acceleration of the practical application of ILs. In a broad context of CAILD, key aspects related to the forward structure−property modeling and reverse molecular design of ILs are overviewed. For the former forward task, diverse IL molecular representations, modeling algorithms, as well as representative models on physical properties, thermodynamic properties, among others of ILs are introduced. For the latter reverse task, representative works formulating different molecular design scenarios are summarized. Beyond the substantial progress made, some future perspectives to move CAILD a step forward are finally provided.

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Selective recovery of rare earth elements from e-waste via ionic liquid extraction: A review

Cited by 41 publications

References 108 publications

Global Research Progress and Trends on Critical Metals: A Bibliometric Analysis

Global Research Progress and Trends on Critical Metals: A Bibliometric Analysis

Ionic Liquid as a N,O-Donor Ligand-Based Extraction System Modifier: Establishing the Mechanism of Am(III)-Selectivity Increasing

Computer-Aided Molecular Design of Ionic Liquids as Advanced Process Media: A Review from Fundamentals to Applications

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