Effect of bentonite and molasses binder content on physical and mechanical properties of green and fired mill scale pellets
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Jayram Barik
Abstract
The present research reports the effect of binder addition on the physical and mechanical properties of green and fired mill scale pellets. A mixture of mill scale powder and varying weight percentage of bentonite (1, 1.5 and 2 wt.%) and molasses (2.5, 5 and 7.5 wt.%) binders were used separately to prepare green mill scale pellets by hand rolling to form spherical balls of diameter around 10 mm and then fired at 1,100 °C for 1 h. It was observed that the moisture content in pellets made with the addition of bentonite was found in the range of (6.16–6.70 wt.%) which was higher compared to those made with the addition of molasses (2.40–4.18 wt.%). A drop number in the range of (1.33–5.33) and (20.33–47.67) were observed for bentonite and molasses bonded pellets respectively. The compressive strength for bentonite bonded pellets varied from (633–780) N cm−2 and molasses bonded pellets it ranged from (179–213) N cm−2. X-ray diffraction study revealed the formation of only hematite phase after sintering at 1,100 °C.
Acknowledgments
The necessary infrastructural and financial support from the Department of Metallurgical and Materials Engineering, National Institute of Technology Rourkela is gratefully acknowledged.
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Research ethics: The authors follow the research ethics guidelines of the institute.
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Informed consent: Not applicable.
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Author contributions: Jayram Barik: Experiments, analysis of results and preparation of first draft of the manuscript. Debasis Chaira: Supervision, result analysis, editing and correction of the manuscript.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: The authors declare that they do not have conflict of interest.
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Research funding: The research did not receive grant from any funding agency.
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Data availability: On request.
References
1. Ma, N.; Sammon, W. J. Enhancement of In-Plant Recycling of Integrated Steel Mill off Gas Solid Wastes by Reallocating Crucial Zinc-Bearing Materials. J. Cleaner Prod. 2020, 251, 119783. https://doi.org/10.1016/J.JCLEPRO.2019.119783.Search in Google Scholar
2. Umadevi, T.; Brahmacharyulu, A.; Karthik, P.; Mahapatra, P. C.; Prabhu, M.; Ranjan, M. Recycling of Steel Plant Mill Scale via Iron Ore Sintering Plant. Ironmaking Steelmaking 2012, 39 (3), 222–227. https://doi.org/10.1179/1743281211Y.0000000063.Search in Google Scholar
3. Sen, R.; Pandel, U. Closed Crucible Reduction of Lump Powdered Mill Scale or Iron Ore by Coal: The Sequential Methodology and Mechanism for Optimization of Process Parameters. Adv. Powder Technol. 2020, 31 (9), 3760–3773. https://doi.org/10.1016/j.apt.2020.07.017.Search in Google Scholar
4. Battle, T.; Srivastava, U.; Kopfle, J.; Hunter, R.; McClelland, J. The Direct Reduction of Iron. Treatise Process Metall. 2014, 3, 89–176. https://doi.org/10.1016/B978-0-08-096988-6.00016-X.Search in Google Scholar
5. Eisele, T. C.; Kawatra, S. K. A Review of Binders in Iron Ore Pelletization. Miner. Process. Extr. Metall. Rev. 2003, 24. https://doi.org/10.1080/08827500306896.Search in Google Scholar
6. Umadevi, T.; Kumar, M. G. S.; Mahapatra, P. C.; Babu, T. M.; Ranjan, M. Recycling of Steel Plant Mill Scale via Iron Ore Palletization Process. Ironmaking Steelmaking 2009, 36 (6), 409–415. https://doi.org/10.1179/174328108X393795.Search in Google Scholar
7. Farahat, R.; Eissa, M.; Megahed, G. Reduction of Mill Scale Generated by Steel Processing. J. Steel Relat. Mater. 2017, 2010.Search in Google Scholar
8. Matiur Rahman, A. K. M. Mill Scale Reduction by Coal-Kinetic Study and Effect of Process Variables. Ph.D. Thesis, BUET, Dhaka, 1993.Search in Google Scholar
9. Sista, K. S.; Dwarapudi, S.; Nerune, V. P. Direct Reduction Recycling of Mill Scale through Iron Powder Synthesis. ISIJ Int. 2019, 59 (5), 787–794. https://doi.org/10.2355/isijinternational.ISIJINT-2018-628.Search in Google Scholar
10. Kotta, A. B.; Patra, A.; Kumar, M.; Karak, S. K. Effect of Molasses Binder on the Physical and Mechanical Properties of Iron Ore Pellets. Int. J. Miner., Metall. Mater. 2019, 26 (1), 41–51. https://doi.org/10.1007/s12613-019-1708-x.Search in Google Scholar
11. Abd El-Gawad, H. H.; Gamal El-Din Khalifa, M.; El-amir Owis Sayed Basheer, A.; Meh, S. The Effect of Addition of Fine Mill Scale (M) on Reduction of El-Baharia Iron Ore (O) Briquettes via Hydrogen. Int. J. Multidiscip. Res. Publ. 2019, 1 (8), 7–14.Search in Google Scholar
12. Bagatini, M. C.; Fernandes, T.; Silva, R.; Galvao, D. F.; Flores, I. V. Mill Scale and Flue Dust Briquettes as Alternative Burden to Low Height Blast Furnaces. J. Cleaner Prod. 2020, 276, 124332. https://doi.org/10.1016/J.JCLEPRO.2020.124332.Search in Google Scholar
13. Shashanka, R.; Chaira, D. Phase Transformation and Microstructure Study of Nano-Structured Austenitic and Ferritic Stainless-Steel Powders Prepared by Planetary Milling. Powder Technol. 2014, 259, 125–136; https://doi.org/10.1016/j.powtec.2014.03.061.Search in Google Scholar
14. Reddy, A. L. S. B.; Sahoo, S. K.; Kumar, M. Studies on Characterization of Properties of Low-Grade Hematite Iron Ores and Their Fired Pellets. Ironmaking Steelmaking 2023, 50 (9), 1215–1223. https://doi.org/10.1080/03019233.2023.2180930.Search in Google Scholar
15. de Moraes, S. L.; de Lima, J. R. B.; Ribeiro, T. R. Iron Ore Pelletizing Process: An Overview. In Iron Ores and Iron Oxide Materials, 2018.10.5772/intechopen.73164Search in Google Scholar
16. Forsmo, S. P. E.; Apelqvist, A. J.; Björkman, B. M. T.; Samskog, P. O. Binding Mechanisms in Wet Iron Ore Green Pellets with a Bentonite Binder. Powder Technol. 2006, 169 (3), 147–158. https://doi.org/10.1016/j.powtec.2006.08.008.Search in Google Scholar
17. Sah, R.; Dutta, S. K. Effects of Binder on the Properties of Iron Ore-Coal Composite Pellets. Miner. Process. Extr. Metall. Rev. 2010, 31 (2), 73–85. https://doi.org/10.1080/08827500903404732.Search in Google Scholar
18. Halt, J. A.; Kawatra, S. K. Can Modified Starch Be Used as a Binder for Iron Ore Pellets. Miner. Process. Extr. Metall. Rev. 2017, 38 (2), 73–82. https://doi.org/10.1080/08827508.2016.1262857.Search in Google Scholar
19. ISO 4700:2015. Iron ore pellets for blast furnace and direct reduction feedstocks — Determination of the crushing strength, 2015. https://www.iso.org.Search in Google Scholar
20. Halt, J. A.; Kawatra, S. K. Review of Organic Binders for Iron Ore Concentrate Agglomeration. Miner. Metall. Process. 2014, 31 (2); https://doi.org/10.1007/bf03402417.Search in Google Scholar
21. Kawatra, S. K.; Claremboux, V. Iron Ore Palletization: Part I. Fundamentals. Miner. Process. Extr. Metall. Rev. 2022, 43, 529–544. https://doi.org/10.1080/08827508.2021.1897586.Search in Google Scholar
22. Sivrikaya, O.; Are, A. I. Alternative Binders to Bentonite for Iron Ore Pelletizing: Part I: Effects on Physical and Mechanical Properties. Holos 2014, 3, 94–103. https://doi.org/10.15628/holos.2014.1758.Search in Google Scholar
23. Papanastassiou, D.; Bitsianes, G. Mechanisms and Kinetics Underlying the Oxidation of Magnetite in the Induration of Iron Ore Pellets. Metall. Trans. 1973, 4, 487–496; https://doi.org/10.1007/bf02648701.Search in Google Scholar
24. Cassola, M. S.; Chaves, A. P. Effect of the Addition of Organic Binders on the Behavior of Iron Ore Pellets. Powder Part. J. 1998, 136–142. https://doi.org/10.14356/kona.1998016.Search in Google Scholar
25. German, R. M. Powder Metallurgy Science, Metal Powder Industries Federation; Wiley: Princeton, New Jersey, USA, 1984.Search in Google Scholar
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