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dc.contributor.authorMohale, G.T.M.
dc.contributor.authorBeukes, J.P.
dc.contributor.authorKleynhans, E.L.J.
dc.contributor.authorVan Zyl, P.G.
dc.contributor.authorBunt, J.R.
dc.contributor.authorTiedt, L.R.
dc.contributor.authorVenter, A.D.
dc.contributor.authorJordaan, A.
dc.date.accessioned2018-01-25T14:05:13Z
dc.date.available2018-01-25T14:05:13Z
dc.date.issued2017
dc.identifier.citationMohale, G.T.M. et al. 2017. SEM image processing as an alternative method to determine chromite pre-reduction. Journal of the Southern African Institute of Mining and Metallurgy, 117(11):1045-1052. [http://dx.doi.org/10.17159/2411-9717/2017/v117n11a9]en_US
dc.identifier.issn2225-6253
dc.identifier.issn2411-9717 (Online)
dc.identifier.urihttp://hdl.handle.net/10394/26185
dc.identifier.urihttp://dx.doi.org/10.17159/2411-9717/2017/v117n11a9
dc.identifier.urihttp://www.scielo.org.za/pdf/jsaimm/v117n11/13.pdf
dc.description.abstractThe specific energy consumption (SEC) of the pelletized chromite prereduction process is the lowest of all FeCr production processes commercially applied. This process also eliminates the use of chromite ore fines that could result in furnace blow-outs or so-called bed turnovers, yields a high chromium (Cr) recovery, and can produce a low-sulphur (S) and -silicon (Si) FeCr. However, this process requires extensive operational control due to the variation in pre-reduction levels and carbon contents of the pre-reduced, pelletized furnace feed material. The wet chemical analytical method currently applied for the determination of chromite prereduction is time-consuming. In this paper, the development of an alternative method consisting of scanning electron microscopy (SEM) micrograph image processing is presented. A strong linear correlation (R2 = 0.919) between chromite pre-reduction (%), as determined by wet chemical analysis, and the new method was obtained. Further development could result in the industrial application of the method, which could contribute significantly to the metallurgical stability and enhanced process control of the pelletized chromite pre-reduction processen_US
dc.language.isoenen_US
dc.publisherSAIMMen_US
dc.subjectChromite pre-reductionen_US
dc.subjectSolid-state reduction of chromiteen_US
dc.subjectScanning electron microscopy (SEM)en_US
dc.subjectImage processingen_US
dc.subjectMetallurgical carbon balanceen_US
dc.titleSEM image processing as an alternative method to determine chromite pre-reductionen_US
dc.typeArticleen_US
dc.contributor.researchID10092390 - Beukes, Johan Paul
dc.contributor.researchID20164200 - Bunt, John Reginald
dc.contributor.researchID10710361 - Van Zyl, Pieter Gideon
dc.contributor.researchID10202927 - Jordaan, Anine
dc.contributor.researchID10059059 - Tiedt, Louwrens Rasmus
dc.contributor.researchID20278241 - Kleynhans, Ernst Lodewyk Johannes
dc.contributor.researchID20049544 - Venter, Andrew Derick
dc.contributor.researchID21173508 - Mohale, Given Terrance Mpho


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