Liquid-liquid extraction of rare earth elements using systems that are more environmentally friendly : advances, challenges and perspectives.

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dc.contributor.authorNeves, Heyder Pereira
dc.contributor.authorFerreira, Gabriel Max Dias
dc.contributor.authorFerreira, Guilherme Max Dias
dc.contributor.authorLemos, Leandro Rodrigues de
dc.contributor.authorRodrigues, Guilherme Dias
dc.contributor.authorLeão, Versiane Albis
dc.contributor.authorMageste, Aparecida Barbosa
dc.date.accessioned2023-05-17T19:12:49Z
dc.date.available2023-05-17T19:12:49Z
dc.date.issued2022pt_BR
dc.description.abstractThe rare earth elements, a group of metals consisting of the lanthanide series, together with yttrium and scan- dium, are increasingly important in high technology industries worldwide. Given the need to expand production of these elements, there is a search for processes to obtain them that are less environmentally damaging, since the rare earths production chain is associated with several environmental problems and concerns. Solvent extraction, one of the important steps involved in the obtaining of rare earth elements, is receiving much attention in the scientific and industrial community, with a renewed search for approaches that avoid the use of organic solvents. Among the various options, cloud point extraction and the use of aqueous two-phase systems are alternatives to the use of traditional organic solvents. This review considers these two more environmentally friendly techniques and their use for the extraction and/or separation of rare earth elements. The issues addressed include their potential to replace traditional liquid–liquid extraction, in terms of the efficiency, toxicity, and biodegradability of the components forming the systems, as well as their potential applications and future perspectives.pt_BR
dc.identifier.citationNEVES, H. P. et al. Liquid-liquid extraction of rare earth elements using systems that are more environmentally friendly: advances, challenges and perspectives. Separation and Purification Technology, v. 282, artigo 120064, 2022. Disponível em: <https://www.sciencedirect.com/science/article/pii/S138358662101769X>. Acesso em: 11 out. 2022.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.seppur.2021.120064pt_BR
dc.identifier.issn1383-5866
dc.identifier.urihttp://www.repositorio.ufop.br/jspui/handle/123456789/16580
dc.identifier.uri2https://www.sciencedirect.com/science/article/pii/S138358662101769Xpt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.subjectSeparationpt_BR
dc.subjectEco-friendly liquid–liquid extractionpt_BR
dc.subjectCloud point extractionpt_BR
dc.subjectAqueous biphasic systempt_BR
dc.titleLiquid-liquid extraction of rare earth elements using systems that are more environmentally friendly : advances, challenges and perspectives.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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