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Drying, Roasting, and Calcining of Minerals pp 259–267Cite as

Effect of Sinter Basicity on Sinter Productivity and Quality with High Rate of Recycled Materials

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Abstract

To supply iron units and flux burden in blast furnaces, sinter basicity is one of the vital parameters for sinter plants. The sinter basicity also plays an important role in sinter quality since it imparts the formation of different mineral phases in sinter. Pot-grate sintering tests were carried out with low and high basicity to investigate the effects of sinter basicity on sinter mineralogy, properties and productivity. It was found that with an increase in sinter basicity, both sinter productivity and reducibility (RI) increased. Tumbler index (TI) and low temperature degradation index (LTD) of high basicity sinter were comparable to low basicity sinter. Softening and melting tests showed that sinter with 3.5 C/S basicity had slightly higher softening temperature comparing to lower basicity sinter with C/S 2.6, acid and fluxed pellets. XRD analyses confirmed the formation of silico-ferrite of calcium and alumina (SFCA) and calcium ferrite (CF) in the tested sinter samples.

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References

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Author information

Authors and Affiliations

  1. ArcelorMittal Global R&D, East Chicago, IN, 46312, USA

    Mingming Zhang (Sr. Research Engineer) & Marcelo W. Andrade (Manager)

  2. ArcelorMittal Indiana Harbor, East Chicago, IN, 46312, USA

    Marshall S. Coe (Plant Manager)

Authors
  1. Mingming Zhang
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  2. Marshall S. Coe
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  3. Marcelo W. Andrade
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Editor information

Editors and Affiliations

  1. Midrex Technologies, Pineville, North Carolina, USA

    Thomas P. Battle (Senior Metallurgist) (Senior Metallurgist)

  2. Montana Tech, USA

    Jerome P. Downey (Associate Professor, the Hazen Research Professor of Extractive Metallurgy, and Goldcorp Professor, the campus Director) (Associate Professor, the Hazen Research Professor of Extractive Metallurgy, and Goldcorp Professor, the campus Director)

  3. Montana University System Materials Science Ph.D. program, USA

    Jerome P. Downey (Associate Professor, the Hazen Research Professor of Extractive Metallurgy, and Goldcorp Professor, the campus Director) (Associate Professor, the Hazen Research Professor of Extractive Metallurgy, and Goldcorp Professor, the campus Director)

  4. Thermal Processing group, Hazen Research, Inc., Golden, Colorado, USA

    Lawrence D. May (Vice President, Facility Manager) (Vice President, Facility Manager)

  5. Kingston Process Metallurgy Inc., Kingston, Ontario, Canada

    Boyd Davis (principal) (principal)

  6. IND LLC, USA

    Neale R. Neelameggham

  7. University of Leeds, UK

    Sergio Sanchez-Segado

  8. Center for Iron and Steelmaking Research in the Department of Materials Science and Engineering, Carnegie Mellon University, USA

    P. Chris Pistorius (POSCO Professor and Co-Director) (POSCO Professor and Co-Director)

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© 2015 TMS (The Minerals, Metals & Materials Society)

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Zhang, M., Coe, M.S., Andrade, M.W. (2015). Effect of Sinter Basicity on Sinter Productivity and Quality with High Rate of Recycled Materials. In: Battle, T.P., et al. Drying, Roasting, and Calcining of Minerals. Springer, Cham. https://doi.org/10.1007/978-3-319-48245-3_32

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