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dc.contributor.authorTerry, B.S.
dc.contributor.authorAzubike, D.C.
dc.contributor.authorChrysanthou, A.
dc.date.accessioned2012-11-22T12:59:58Z
dc.date.available2012-11-22T12:59:58Z
dc.date.issued1994-06-01
dc.identifier.citationTerry , B S , Azubike , D C & Chrysanthou , A 1994 , ' Reduction/carburisation of columbite concentrate ' Scandinavian Journal of Metallurgy , vol. 23 , no. 3 , pp. 130-136 .
dc.identifier.issn0371-0459
dc.identifier.otherPURE: 1055076
dc.identifier.otherPURE UUID: 5ea3c1b9-6bb8-469e-b004-42a75bf67067
dc.identifier.otherScopus: 0028459996
dc.identifier.urihttp://hdl.handle.net/2299/9217
dc.descriptionCopyright 2004 Elsevier B.V., All rights reserved.
dc.description.abstractThe carbothermic reduction of columbite has been investigated at 1400°C utilising coal and graphite as alternative sources of carbon. Reduction to an iron-carbon matrix and NbC and TaC carbides occurs readily with complete reduction being achieved in 45 min with coal and 100 min with graphite. The reduction occurs by the intermediate formation of iron-niobium-tantalum suboxides. Reduction with CO is slow compared to the reduction with carbon. Reduction of the ilmenite component of the columbite concentrate studied yields titanium oxy-carbide in an iron-carbon matrix. The feasibility of utilising carbothermic reduction as a means of exploiting columbite is discussed.en
dc.format.extent7
dc.language.isoeng
dc.relation.ispartofScandinavian Journal of Metallurgy
dc.titleReduction/carburisation of columbite concentrateen
dc.contributor.institutionCentre for Engineering Research
dc.contributor.institutionSchool of Engineering and Technology
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionMaterials and Structures
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=0028459996&partnerID=8YFLogxK
dc.relation.schoolSchool of Engineering and Technology
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstyperestrictedAccess


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