Abstract
The effect of core diameter on the compressive strength and porosity of Itakpe iron ore pellets has been studied. The holes at the centre of the pellets were introduced using balls of combustible materials (palm kernel husk, rice husk and sugar cane husk) of various sizes (2, 3, 4, 5 and 6 mm). The produced green pellets were dried and fired, chemical composition, physical and mechanical properties were determined using standard methods. The results showed that the chemical composition of the pellets produced is acceptable and can be used commercially and the palm kernel husk has the best compressive strength with 7.16 KN/mm2 while the porosities were in the range of 25–31%. The result also showed that good porosity and maximum compressive strength were achieved with hollow pellets formed with combustible materials of diameter 4 mm for all the samples.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Morris G (2011) World steel in figures. World Steel Association, Published online 01 July 2011 www.worldsteel.org
Mashao MS (2009) Evaluation of iron ore pellets and sinters for BF and DR use. The Southern African Institute of Mining and Metallurgy, http://www.saimm.co.za/events/0809pelsint/downloads/Mashao.pdf
Kumar M, Jena S, Pate SK (2008) Characterization of properties and reduction behavior of iron ores for application in sponge ironmaking. Mineral Process Extr Metall Rev 29(2):118–129
Wu SL, Xu HF, Tian YQ (2009) Evaluation of lump ores for use in modern blast furnaces as part of mixed burden practice. Ironmaking Steelmaking 36(1):19–23
Sharma T, Gupta RC, Prakash B (1990) Effect of gangue content on the swelling behavior of iron ore pallets. Miner Eng 3(5):509–516
Jones GK (1979) Industrial minerals. In: Austria institutes of metals and minerals. New Castle pellets and granules symposium 1979
Eklund N, Dahlstedt A (2002) The choice of pellets in a mixed blast furnace burden and how it affects the process control. Paper presented at 14th conference on hungarian pig iron and steel making Balatonzéplak, Lulea, Sweden, 12–13 Sept 2002
Kawatra SK, Elisele TC, Gartler JA, Hardison CA, Lewandoski K (2004) Report on novel binders and methods for agglomeration of ore. Semiannual technical progress report 2004
Acknowledgements
The lead author gratefully acknowledges the financial support from Nigeria Tertiary Education Trust Fund (TETFund). The authors also wish to thank all academic and technical staff that made input in this work.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 The Minerals, Metals & Materials Society
About this paper
Cite this paper
Odo, J., Nwoke, V. (2019). Effect of Core Diameter on the Compressive Strength and Porosity of Itakpe Iron Ore Pellets. In: Jiang, T., et al. 10th International Symposium on High-Temperature Metallurgical Processing. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-05955-2_48
Download citation
DOI: https://doi.org/10.1007/978-3-030-05955-2_48
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-05954-5
Online ISBN: 978-3-030-05955-2
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)