Hydrometallurgical recycling of waste NdFeB magnets: design of experiment, optimisation of low concentrations of sulphuric acid leaching and process analysis

Basit Öğe Kaydı
dc.authorid0000-0002-9945-1199
dc.contributor.authorUysal, Emircan
dc.contributor.authorAl, Serhat
dc.contributor.authorKaya, Elif Emil
dc.contributor.authorStopic, Srecko
dc.contributor.authorGürmen, Sebahattin
dc.contributor.authorFriedrich, Bernd
dc.date.accessioned2022-10-31T07:18:37Z
dc.date.available2022-10-31T07:18:37Z
dc.date.issued2022
dc.departmentTAÜ, Fen Fakültesi, Malzeme Bilimi ve Teknolojileri Bölümüen_US
dc.description.abstractEfficient recovery of rare earth elements (REEs) from scrap NdFeB magnets is a significant requirement for a circular economy. Therefore, the development of a cost-effective and environmentally friendly leaching process for the dissolution of iron and REEs has received extensive interest. In this study, the dissolution of NdFeB magnet powders in sulphuric acid solution was investigated in detail. Taguchi orthogonal array was employed for the first time to define and optimise the influence of sulphuric acid concentration, solid-to-liquid ratio and stirring speed on the extraction of iron and rare earth elements (REEs). The acid concentration of sulphuric acid was determined as a key factor for iron and REEs dissolution, while solid-to-liquid ratio and stirring speed slightly affected the dissolution of REEs and iron. Maximum iron and REEs extraction were achieved under optimal conditions as the sulphuric acid concentration of 1 M, solid-to-liquid ratio of 1/15 and stirring speed of 350 rev min(-1). Consequently, after the validation experiment, it was proved that the design of experiments based on Taguchi orthogonal array is an efficient way for the optimisation of process parameters.
dc.identifier.citationUysal, E., Al, S., Kaya, E. E., Stopic, S., Gürmen, S., & Friedrich, B. (2022). Hydrometallurgical recycling of waste NdFeB magnets: design of experiment, optimisation of low concentrations of sulphuric acid leaching and process analysis. Canadian Metallurgical Quarterly.
dc.identifier.doi10.1080/00084433.2022.2058152
dc.identifier.scopus2-s2.0-85129145777
dc.identifier.urihttps://hdl.handle.net/20.500.12846/663
dc.identifier.wosWOS:000777100300001
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorKaya, Elif Emil
dc.language.isoen
dc.publisherTaylor & Francis
dc.relation.ispartofCanadian Metallurgical Quarterly
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectLeachingen_US
dc.subjectRare Earth Elementsen_US
dc.subjectNdFeB Magnetsen_US
dc.subjectDesign of Experimenten_US
dc.subjectTaguchi Methoden_US
dc.subjectAuslaugenen_US
dc.subjectSeltene Erde Elementeen_US
dc.subjectVersuchsplanungen_US
dc.subjectNadir Toprak Elementlerien_US
dc.subjectNdFeB Mıknatıslaren_US
dc.subjectDeney Tasarımıen_US
dc.titleHydrometallurgical recycling of waste NdFeB magnets: design of experiment, optimisation of low concentrations of sulphuric acid leaching and process analysis
dc.typeArticle

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