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dc.contributor.authorJahrsengene, Gøril
dc.contributor.authorWells, Hannah C.
dc.contributor.authorRørvik, Stein
dc.contributor.authorRatvik, Arne Petter
dc.contributor.authorHaverkamp, Richard G.
dc.contributor.authorSvensson, Ann Mari
dc.date.accessioned2018-05-30T11:56:15Z
dc.date.available2018-05-30T11:56:15Z
dc.date.created2018-05-28T18:18:30Z
dc.date.issued2018
dc.identifier.citationMetallurgical and materials transactions. B, process metallurgy and materials processing science. 2018, 49 (3), 1434-1443.nb_NO
dc.identifier.issn1073-5615
dc.identifier.urihttp://hdl.handle.net/11250/2499799
dc.description.abstractAvailability of anode raw materials in the growing aluminum industry results in a wider range of petroleum cokes being used to produce carbon anodes. The boundary between anode grade cokes and what previously was considered non-anode grades are no longer as distinct as before, leading to introduction of cokes with higher sulfur and higher trace metal impurity content in anode manufacturing. In this work, the chemical nature of sulfur in five industrial cokes, ranging from 1.42 to 5.54 wt pct S, was investigated with K-edge XANES, while the reactivity of the cokes towards CO2 was measured by a standard mass loss test. XANES identified most of the sulfur as organic sulfur compounds. In addition, a significant amount is identified (16 to 53 pct) as S-S bound sulfur. A strong inverse correlation is observed between CO2-reactivity and S-S bound sulfur in the cokes, indicating that the reduction in reactivity is more dependent on the amount of this type of sulfur compound rather than the total amount of sulfur or the amount of organic sulfur.nb_NO
dc.language.isoengnb_NO
dc.publisherSpringer Verlagnb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleA XANES Study of Sulfur Speciation and Reactivity in Cokes for Anodes Used in Aluminum Productionnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.pagenumber1434-1443nb_NO
dc.source.volume49nb_NO
dc.source.journalMetallurgical and materials transactions. B, process metallurgy and materials processing sciencenb_NO
dc.source.issue3nb_NO
dc.identifier.doi10.1007/s11663-018-1215-x
dc.identifier.cristin1587251
dc.relation.projectNorges forskningsråd: 236665nb_NO
dc.description.localcode© The Author(s) 2018 Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/)nb_NO
cristin.unitcode194,66,35,0
cristin.unitcode194,0,0,0
cristin.unitnameInstitutt for materialteknologi
cristin.unitnameNorges teknisk-naturvitenskapelige universitet
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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