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Existing and New Processes for Beneficiation of Indian Iron ores

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Abstract

The iron ore industries of India are expected to bring new technologies to cater to the need of the tremendous increase in demand for quality ores for steel making. With the high-grade ores depleting very fast, the focus is on the beneficiation of low-grade resources. However, most of these ores do not respond well to the conventional beneficiation techniques used to achieve a suitable concentrate for steel and other metallurgical industries. The present communication discusses the beneficiation practices in the Indian context and the recent developments in alternative processing technologies such as reduction roasting, microwave-assisted heating, magnetic carrier technology and bio-beneficiation. Besides, the use of new collectors in iron ore flotation is also highlighted.

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Acknowledgements

The authors are thankful to the Director, CSIR-IMMT, Bhubaneswar, for his permission to publish this paper and the Ministry of Steel, Government of India, for their financial support.

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  1. CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, 751013, India

    Bisweswar Das & Swagat S. Rath

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  1. Bisweswar Das
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Correspondence to Swagat S. Rath.

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Bisweswar Das : Retired Chief Scientist

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Das, B., Rath, S.S. Existing and New Processes for Beneficiation of Indian Iron ores. Trans Indian Inst Met 73, 505–514 (2020). https://doi.org/10.1007/s12666-020-01878-z

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