Recovery of rare earth elements from spent NdFeB-magnets: separation of iron through reductive smelting of the oxidized material (second part)

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dc.authorid0000-0002-9945-1199
dc.contributor.authorChung, Hanwen
dc.contributor.authorStopic, Srecko
dc.contributor.authorKaya, Elif Emil
dc.contributor.authorGürmen, Sebahattin
dc.contributor.authorFriedrich, Bernd
dc.date.accessioned2022-11-18T11:03:56Z
dc.date.available2022-11-18T11:03:56Z
dc.date.issued2022
dc.departmentTAÜ, Fen Fakültesi, Malzeme Bilimi ve Teknolojileri Bölümüen_US
dc.description.abstractThis paper proposes a pyrometallurgical recycling method for end-of-life NdFeB magnets by oxidizing them in air and subsequently smelting them. The smelting process enabled the recovery of rare earth elements (REEs), producing a new reach concentrate separating the iron as a metallic phase. From the products of smelting, the metallic phase showed a maximum Fe content of 92.3 wt.%, while the slag phase showed a maximum total REE (Nd, Pr, and Dy) content of 47.47 wt.%, both at a smelting temperature of 1500 degrees C. ICE-OES and XRD analysis were conducted on both phases, and results showed that the metal phase consists mainly of Fe and Fe3C while the slag phase consists of the RE-oxides, leftover Fe2O3, and a mixture of Fe6Nd4. The obtained slag concentrate based on the oxides of rare earth elements is suitable for further pyrometallurgical or hydrometallurgical treatment in order to obtain rare earth elements.
dc.identifier.citationChung, H., Stopic, S., Kaya, E. E., Gürmen, S., & Friedrich, B. (2022). Recovery of Rare Earth Elements from Spent NdFeB-Magnets: Separation of Iron through Reductive Smelting of the Oxidized Material (Second Part). Metals, 12(10), 1615.
dc.identifier.doi10.3390/met12101615
dc.identifier.issue10en_US
dc.identifier.scopus2-s2.0-85140932398
dc.identifier.scopusqualityN/A
dc.identifier.urihttps://hdl.handle.net/20.500.12846/698
dc.identifier.volume12en_US
dc.identifier.wosWOS:000873031500001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorKaya, Elif Emil
dc.language.isoen
dc.publisherMDPI-Multidisciplinary Digital Publishing Institute
dc.relation.ispartofMetals
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectRecyclingen_US
dc.subjectOxidationen_US
dc.subjectRare Earth Elementsen_US
dc.subjectMagnetsen_US
dc.subjectGeri Dönüşümen_US
dc.subjectNadir Toprak Elementlerien_US
dc.subjectMıknatıslaren_US
dc.subjectElemente der Seltenen Erdenen_US
dc.titleRecovery of rare earth elements from spent NdFeB-magnets: separation of iron through reductive smelting of the oxidized material (second part)
dc.typeArticle

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