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Conference Proceedings

Iron Ore 2017

Conference Proceedings

Iron Ore 2017

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Sintering technologies of sinter mixtures containing high proportions of magnetite concentrates

Due to the international depletion of reserves of traditional high-grade iron ore, the ore resources available throughout the world, especially in steel mills in East Asia, have changed drastically from hard hematitic to more goethitic ore types, such as pisolitic and Marra Mamba ores. The level of impurities and loss on ignition in iron ore has also been slowly increasing. Finally, the proportion of fine material in the available products has increased considerably for most iron ore fines. This has been found to have significant impacts on sinter quality and sintering performance. Magnetite concentrate is typically high in Fe grade and releases extra heat when oxidised to hematite. The amount of magnetite concentrates is expected to increase due to the recent development of a number of magnetite projects. Some of these magnetite concentrates will end in sinter blends. This will not only improve the sinter quality and but also have a beneficial impact on the fuel consumption of the sintering process. However, most of the concentrates available are very fine, which will negatively impact the green bed permeability and consequently the productivity of the sintering process. This paper reviews and comments on the recent technological advances in sintering with high proportions of magnetite concentrates.CITATION:Han, H and Lu, L, 2017. Sintering technologies of sinter mixtures containing high proportions of magnetite concentrates, in Proceedings Iron Ore 2017, pp 31-38 (The Australasian Institute of Mining and Metallurgy: Melbourne).
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  • Published: 2017
  • PDF Size: 0.909 Mb.
  • Unique ID: P201703007

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