The Study of Pelletizing of Mixed Hematite and Magnetite Ores

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dc.authoridSivrikaya, Osman/0000-0001-8146-5747
dc.contributor.authorKumar, P. S.
dc.contributor.authorRavi, B. P.
dc.contributor.authorSivrikaya, O.
dc.contributor.authorNanda, R. K.
dc.date.accessioned2025-01-06T17:43:21Z
dc.date.available2025-01-06T17:43:21Z
dc.date.issued2019
dc.description.abstractThe present study aims to investigate the use of mixed hematite and magnetite ores in iron ore pellet production. Pelletizing tests were carried out on the hematite and magnetite premixed pellet feed. Drop number and compressive strength tests for green and dry pellets; porosity, compressive strength and reducibility tests for fired pellets were carried out to determine the influence of mixing ratios of both iron oxides on those pellet properties. Experimental results showed that as the hematite content in the mix pellets is increased, the green drop number decreased from 6.5 to 5.2, the green compressive strength decreased from 1.51 to 1.28 kg/pellet and the dry compressive strength decreased from 2.50 to 1.60 kg/pellet. It was determined that fired compressive strength of mix pellets decreased from 380 to 230 kg/pellet when the hematite content in the mixed pellet is increased. The reducibility of mix pellets had almost the same trend and it was faster up to 40 min reduction time. The results showed that the use of hematite together with magnetite is possible to produce pellets with sufficiently good quality in terms of wet, dry and fired mechanical strengths. The porosity and reducibility values of mix pellets were also found to be adequate to use as feed for the blast furnace.
dc.identifier.doi10.2298/SOS1901027K
dc.identifier.endpage38
dc.identifier.issn0350-820X
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85069880354
dc.identifier.scopusqualityQ2
dc.identifier.startpage27
dc.identifier.urihttps://doi.org/10.2298/SOS1901027K
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2635
dc.identifier.volume51
dc.identifier.wosWOS:000496247800003
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherInt Inst Science Sintering (I I S S)
dc.relation.ispartofScience of Sintering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241211
dc.subjectIron ores
dc.subjectMagnetite
dc.subjectHematite
dc.subjectPellets
dc.subjectCompressive strength
dc.titleThe Study of Pelletizing of Mixed Hematite and Magnetite Ores
dc.typeArticle

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