Selective neodymium recovery from model permanent magnets using cost-effective organic acid systems

5 figures, 3 tables.-- This article is part of the themed collection: Celebrating International Women’s day 2025: Women in green chemistry.

Detalles Bibliográficos
Autores: Pozo Gonzalo, Cristina, Golmohammadzadeh, Rabeeh, Myekhlaia, Munkhshur, Bastos, Henrique, Deacon, Glen B, Somers, Anthony
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/381652
Acceso en línea:http://hdl.handle.net/10261/381652
Access Level:acceso abierto
Palabra clave:NdFeB magnet
Leaching
Rare earth elements
Acetic acid
Lactic acid
http://metadata.un.org/sdg/12
Ensure sustainable consumption and production patterns
neodymium
magnets
leaching
rare earth elements
acetic acid
lactic acid
id ES_a1591a79ef5c5bc1be7c6dd06e4e8e3f
oai_identifier_str oai:digital.csic.es:10261/381652
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Selective neodymium recovery from model permanent magnets using cost-effective organic acid systems
title Selective neodymium recovery from model permanent magnets using cost-effective organic acid systems
spellingShingle Selective neodymium recovery from model permanent magnets using cost-effective organic acid systems
Pozo Gonzalo, Cristina
NdFeB magnet
Leaching
Rare earth elements
Acetic acid
Lactic acid
http://metadata.un.org/sdg/12
Ensure sustainable consumption and production patterns
neodymium
magnets
leaching
rare earth elements
acetic acid
lactic acid
title_short Selective neodymium recovery from model permanent magnets using cost-effective organic acid systems
title_full Selective neodymium recovery from model permanent magnets using cost-effective organic acid systems
title_fullStr Selective neodymium recovery from model permanent magnets using cost-effective organic acid systems
title_full_unstemmed Selective neodymium recovery from model permanent magnets using cost-effective organic acid systems
title_sort Selective neodymium recovery from model permanent magnets using cost-effective organic acid systems
dc.creator.none.fl_str_mv Pozo Gonzalo, Cristina
Golmohammadzadeh, Rabeeh
Myekhlaia, Munkhshur
Bastos, Henrique
Deacon, Glen B
Somers, Anthony
author Pozo Gonzalo, Cristina
author_facet Pozo Gonzalo, Cristina
Golmohammadzadeh, Rabeeh
Myekhlaia, Munkhshur
Bastos, Henrique
Deacon, Glen B
Somers, Anthony
author_role author
author2 Golmohammadzadeh, Rabeeh
Myekhlaia, Munkhshur
Bastos, Henrique
Deacon, Glen B
Somers, Anthony
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Australian Research Council
AMF Magnetics
Pozo Gonzalo, Cristina [0000-0002-7890-6457]
Golmohammadzadeh, Rabeeh [0000-0002-4169-5326]
Myekhlaia, Munkhshur [0000-0003-1108-7570]
Bastos, Henrique [0000-0001-5128-6588]
Deacon, Glen B. [0000-0002-6966-6121]
Somers, Anthony [0000-0002-0220-2904]
Pozo Gonzalo, Cristina [cpozo@icb.csic.es]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv NdFeB magnet
Leaching
Rare earth elements
Acetic acid
Lactic acid
http://metadata.un.org/sdg/12
Ensure sustainable consumption and production patterns
neodymium
magnets
leaching
rare earth elements
acetic acid
lactic acid
topic NdFeB magnet
Leaching
Rare earth elements
Acetic acid
Lactic acid
http://metadata.un.org/sdg/12
Ensure sustainable consumption and production patterns
neodymium
magnets
leaching
rare earth elements
acetic acid
lactic acid
description 5 figures, 3 tables.-- This article is part of the themed collection: Celebrating International Women’s day 2025: Women in green chemistry.
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_dcae04bc
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/381652
url http://hdl.handle.net/10261/381652
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Pozo Gonzalo, Cristina; Golmohammadzadeh, Rabeeh; Myekhlaia, Munkhshur; Bastos, Henrique; Deacon, Glen B; Somers, Anthony; 2024; Supporting information for Selective neodymium recovery from model permanent magnets using cost-effective organic acid systems [Dataset]; Royal Society of Chemistry (UK); http://dx.doi.org/10.1039/d3gc04800d
http://dx.doi.org/10.1039/d3gc04800d
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/msword
dc.publisher.none.fl_str_mv Royal Society of Chemistry (UK)
publisher.none.fl_str_mv Royal Society of Chemistry (UK)
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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spelling Selective neodymium recovery from model permanent magnets using cost-effective organic acid systemsPozo Gonzalo, CristinaGolmohammadzadeh, RabeehMyekhlaia, MunkhshurBastos, HenriqueDeacon, Glen BSomers, AnthonyNdFeB magnetLeachingRare earth elementsAcetic acidLactic acidhttp://metadata.un.org/sdg/12Ensure sustainable consumption and production patternsneodymiummagnetsleachingrare earth elementsacetic acidlactic acid5 figures, 3 tables.-- This article is part of the themed collection: Celebrating International Women’s day 2025: Women in green chemistry.Recovery of critical metals from waste is becoming very important to bridge the gap between the limited natural resources available and their ever-increasing demand. One such vital metal is neodymium (Nd), which plays an essential role in advancing sustainable clean energy technologies. Therefore, in this work, the key parameters to selectively recover Nd over iron (Fe) from their oxides, as model systems were investigated. By investigating the effect of key parameters, we aim to understand the underpinning science principles necessary for the safe and efficient recovery of critical metals from secondary sources. A series of deep eutectic solvents, consisting of a hydrogen bond donor (HBD), lactic acid or acetic acid, and hydrogen bond acceptor (HBA), guanidine hydrochloride (GUC), have been investigated in HBA–HBD combinations, and individually in the presence of water to determine the role of the HBD and HBA towards Nd and Fe leaching efficiency and selectivity. The combination of GUC with HBDs was less beneficial for the leaching of Nd2O3, with a maximum value of 78% in comparison with the individual systems, in the absence of GUC, which demonstrated a maximum dissolution of 95%. Among the different combinations, the acetic acid aqueous solution led to the highest dissolution efficiency and selectivity, probably due to the high basicity and strong stability constants for Nd-acetate complexes. Other parameters, such as the impact of the molar ratio Nd2O3 : Fe2O3 were also explored, and a synergetic effect that promotes Nd2O3 solubility at 1 : 1 Nd : Fe weight ratio is observed across the samples. However, when increasing the amount of Fe2O3 in the mixture to simulate realistic ratios present in spent magnets, selectivity is strongly affected, and only the acetic acid solution is capable of selectively dissolving Nd2O3 with a separation factor of up to 5038, which is higher than the current state of the art (1608). Finally, the acetic acid concentration was also studied as a factor to assess its effect on selectivity while also reducing cost.CPG acknowledges the Australian Research Council (ARC) Centre for Training Centre for Future Energy Storage Technologies (storEnergy) (IC180100049) for their funding. The authors thanks AMF magnetics (https://magnet.com.au/) for partly funding the project and materials supply.Peer reviewedRoyal Society of Chemistry (UK)Australian Research CouncilAMF MagneticsPozo Gonzalo, Cristina [0000-0002-7890-6457]Golmohammadzadeh, Rabeeh [0000-0002-4169-5326]Myekhlaia, Munkhshur [0000-0003-1108-7570]Bastos, Henrique [0000-0001-5128-6588]Deacon, Glen B. [0000-0002-6966-6121]Somers, Anthony [0000-0002-0220-2904]Pozo Gonzalo, Cristina [cpozo@icb.csic.es]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2025202520242025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_dcae04bcPostprintinfo:eu-repo/semantics/acceptedVersionapplication/mswordhttp://hdl.handle.net/10261/381652reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésPozo Gonzalo, Cristina; Golmohammadzadeh, Rabeeh; Myekhlaia, Munkhshur; Bastos, Henrique; Deacon, Glen B; Somers, Anthony; 2024; Supporting information for Selective neodymium recovery from model permanent magnets using cost-effective organic acid systems [Dataset]; Royal Society of Chemistry (UK); http://dx.doi.org/10.1039/d3gc04800dhttp://dx.doi.org/10.1039/d3gc04800dSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3816522026-05-22T06:33:51Z
score 15,812429

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