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Utilization of Some of Major Steel Plant Wastes to Produce Metallic Iron

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Abstract

The steel industry generates a significant amount of waste in the form of solid, liquid, and gas pollutants. The research aims to develop a suitable process that can convert these wastes into useful resources. The study focusses on utilizing the waste generated by the sinter plant, blast furnace and steel melting shop, which are the three main components of an integrated steel plant. The waste is in the form of fine powder, which is agglomerated to form cylindrical briquettes and reduced through a direct reduced iron (DRI) route to produce metallic iron. The waste from the blast furnace contains both iron oxide and carbon, and it is found that the carbon content in the waste is more than enough to reduce the iron oxide. The laboratory trial demonstrates that more than 91% of the waste can be reduced, and more than 85% of the waste can be metallized in all three cases. Therefore, the study shows that the waste from the steel industry has the potential to replace conventional sources of iron and carbon and can be considered for further plant scale studies.

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Acknowledgements

The authors acknowledge the support of the following authorities to perform the research work: Rastriya Ispat Nigam Limited, Visakhapatnam, India, for providing the plant wastes along with the other raw materials. Rashtriya Uchchatar Shiksha Abhiyan (RUSA 2.0) for providing monitory support to execute the project. Metallurgical & Material Engineering Department, Jadavpur University, for providing the laboratory and the characterisation facilities.

Funding

This work was supported by Rashtriya Uchchatar Shiksha Abhiyan (RUSA 2.0) under grant number R-11/444/19 dated 30.05.19. Author Rajib Dey received research fund support from RUSA 2.0. The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

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Authors and Affiliations

  1. Metallurgical & Material Engineering Department, Jadavpur University, Kolkata, West Bengal, India

    Arnab Swarnakar & Rajib Dey

  2. School of Mines & Metallurgy, Kazi Nazrul University, Asansol, West Bengal, India

    Chanchal Biswas & Arghya Majumder

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  1. Arnab Swarnakar
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  2. Chanchal Biswas
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Correspondence to Arnab Swarnakar.

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Conflict of interest

Author Chanchal Biswas and Arghya Majumder declare that they have no financial interests. Author Arnab Swarnakar has worked as Project Assistant and received honoraria. Author Rajib Dey has received research funding from Rashtriya Uchchatar Shiksha Abhiyan (RUSA 2.0). Author Chanchal Biswas and Arghya Majumder has no financial interests as they worked as advisors. The authors have no relevant financial and nonfinancial interests to disclose.

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Swarnakar, A., Biswas, C., Majumder, A. et al. Utilization of Some of Major Steel Plant Wastes to Produce Metallic Iron. J. Inst. Eng. India Ser. D (2023). https://doi.org/10.1007/s40033-023-00502-w

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