Mill scale as a potential additive to improve the quality of hematite ore pellet
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
View Archive Info| Field | Value | |
| Title |
Mill scale as a potential additive to improve the
quality of hematite ore pellet
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| Creator |
Rajshekhar, Y
Pal, J Venugopalan, T |
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| Subject |
Pyrometallurgy
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| Description |
Hematite pellet is required to be indurated at very high temperature to achieve its good strength as there is
no exothermic heat of oxidation unlike magnetite. As mill scale contains mainly FeO and Fe3O4, any minor
amount of its addition in pellet can provide in situ heat and enhance diffusion bonding and sintering. In this
study, the mill scale generated in steel plant is added asmagnetite input in hematite pellet both in acidic and
in basic condition. It has been found that in fluxed pellet, mill scale can improve the properties of pellet. In
acidic pellet, the induration temperature has been reduced to a great extent (1250–1275°C) and all properties
have been found to be improved due to the addition of 15%mill scale. Mill scale shows enough potential
to eliminate the flux addition in producing blast furnace quality pellet from hematite ore. Thus, the flux free
acidic pellet has been developed even at very low temperature (1275°C) of induration.
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| Publisher |
Taylor & Francis
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| Date |
2018
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://eprints.nmlindia.org/7812/1/Mill_scale_as_a_potential_additive_to_improve_the_quality_of_hematite_ore_pellet.pdf
Rajshekhar, Y and Pal, J and Venugopalan, T (2018) Mill scale as a potential additive to improve the quality of hematite ore pellet. Mineral Processing and Extractive Metallurgy Review, 39(3) (IF-20117). pp. 202-210. |
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| Relation |
https://doi.org/10.1080/08827508.2017.1415205
http://eprints.nmlindia.org/7812/ |
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