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Effect of Metallic Iron Sinter Feed on Sinter Mineralogy and Quality

  • Mingming ZhangEmail author
  • Marcelo Andrade
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

Sinter samples produced from pot-grate sintering tests were evaluated and analyzed by optical microscopy, X-ray diffraction (XRD) and inductively coupled plasma optical emission spectrometry (ICP-OES) to study the effects of metallic iron sinter feed on sinter mineralogy and quality. Major mineral phases presented in the sinter samples are hematite and magnetite; minor mineral is wustite, silicate, and silicoferrite of calcium and aluminum (SFCA). XRD peaks of metal iron are weak in all sinter samples, and most metallic iron observed in sinter samples is reduced iron from wustite. The sinter produced with higher metallic iron feed has comparable Tumbler index (TI) and higher low-temperature degradation index (LTD). The higher LTD of sinter produced with higher metallic iron feed is due to the fact that lower part of sinter bed was melted at a higher temperature and cooled more slowly in the sintering process compared to that of lower metallic iron feed sintering process.

Keywords

Sinter Metallic feed Characterization Mineralogy Quality 

Notes

Acknowledgements

The authors would like to thank ArcelorMittal Global R&D management for their permission to publish this work.

References

  1. 1.
    Zhang M, Andrade M (2015) Effects of sinter basicity on sinter productivity and quality with high rate of recycled materials. Drying, roasting and calcining of minerals, TMS (The Minerals, Metals & Materials Society), pp 259–267Google Scholar
  2. 2.
    Noldin Jr JH et al (2015) Trends in ironmaking given the new reality of iron ore and coal resources. AISTech Proc 366–375Google Scholar
  3. 3.
    Nakano M, Yamakawa T, Hyakawa N, Nagabuchi M (1998) Effects of metallic iron bearing resources on iron ore sintering. ISIJ Int 38(1):16–22CrossRefGoogle Scholar
  4. 4.
    MOCHON J et al (2014) Iron ore sintering Part 2. Quality indices and productivity. Dyna rev fac nac minas [online], vol 81, n 183, pp 168–177CrossRefGoogle Scholar
  5. 5.
    Murao R, Kimura M (2018) Investigation on reaction schemes of iron ore sintering process by high temperature in-situ x-ray diffraction and micro-texture observation. Nippon steel & sumitomo metal technical report no. 118 March, pp 59–64Google Scholar
  6. 6.
    Fujino Kazuya, Murakami Taichi, Kasai Eiki (2017) Oxidation characteristics of metallic iron and magnetite concentrate with coke in sintering bed. Tetsu-to-Hagané 103(6):365–371CrossRefGoogle Scholar

Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  1. 1.ArcelorMittal Global R&DEast ChicagoUSA

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