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dc.contributor.authorLazou, Adamantia
dc.contributor.authorEijk, Casper van der
dc.contributor.authorTang, Kai
dc.contributor.authorBalomenos, Efthymios
dc.contributor.authorKolbeinsen, Leiv
dc.contributor.authorSafarian, Jafar
dc.date.accessioned2021-11-15T08:37:43Z
dc.date.available2021-11-15T08:37:43Z
dc.date.created2021-05-14T08:43:11Z
dc.date.issued2021
dc.identifier.citationMetallurgical and Materials Transactions B. 2021, 52B 1255-1266.en_US
dc.identifier.issn1073-5615
dc.identifier.urihttps://hdl.handle.net/11250/2829510
dc.description.abstractMetallurgical grade alumina is produced worldwide through the well-known Bayer process, which unavoidably generates bauxite residue (BR, also known as red mud) in almost equal amounts to alumina. This study aims the valorization of BR through a smelting-reduction process to obtain calcium aluminate slags that can be a proper feed for alumina recovery via the Pedersen process. It investigates the thermodynamics and characteristics of the slags and pig iron produced from mixtures of BR, a bauxite beneficiation byproduct, and lime. In this context, the evolution of the different phases in the slags is studied with advanced analytical techniques and thermodynamic calculations. According to the results, a CaO/Al2O3 mass ratio within 1.3 to 1.4 in the slags can yield more Al2O3-containing leachable phases, such as CaO·Al2O3 and 12CaO·7Al2O3. The cooling dictates the amount and the characteristics of these phases, and the slower cooling rate yields improved slag characteristics. The distribution of the elements between the slag and metal phases shows that iron is separated, and the majority of the P, Cr, Ni, and V are distributed in the produced pig iron, while S, Ti, and Si are mostly concentrated in the slags.en_US
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleThe Utilization of Bauxite Residue with a Calcite-Rich Bauxite Ore in the Pedersen Process for Iron and Alumina Extractionen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright: The authors 2021en_US
dc.source.pagenumber1255-1266en_US
dc.source.volume52Ben_US
dc.source.journalMetallurgical and Materials Transactions Ben_US
dc.identifier.doi10.1007/s11663-021-02086-w
dc.identifier.cristin1909960
dc.relation.projectEC/H2020/767533en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal