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Study of Organic and Inorganic Binders on Strength of Iron Oxide Pellets

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Abstract

Bentonite is a predominant binder used in iron ore pelletization. However, the presence of a high content of silica and alumina in bentonite is considered undesirable for ironmaking operations. The objective of this study was to identify the alternatives of bentonite for iron ore pelletization. To achieve this goal, different types of organic and inorganic binders were utilized to produce iron oxide pellets. The quality of these iron oxide pellets was compared with pellets made using bentonite. All pellets were tested for physical strength at different stages of pelletization to determine their ability to survive during shipping and handling. The results show that organic binders such as lactose monohydrate, hemicellulose, and sodium lignosulfonate can provide sufficient strength to indurated pellets.

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Authors and Affiliations

  1. Michigan Technological University, Houghton, MI, 49931, USA

    Urvashi Srivastava (Graduate Student, Metallurgist)

  2. Research & Development Technology Center, Midrex Technologies, Pineville, NC, 28134, USA

    Urvashi Srivastava (Graduate Student, Metallurgist)

  3. Department of Chemical Engineering, Michigan Technological University, Houghton, MI, 49931, USA

    S. Komar Kawatra (Professor) & Timothy C. Eisele (Assistant Professor)

Authors
  1. Urvashi Srivastava
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  2. S. Komar Kawatra
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  3. Timothy C. Eisele
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Correspondence to Urvashi Srivastava.

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Manuscript submitted September 4, 2012.

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Srivastava, U., Kawatra, S.K. & Eisele, T.C. Study of Organic and Inorganic Binders on Strength of Iron Oxide Pellets. Metall Mater Trans B 44, 1000–1009 (2013). https://doi.org/10.1007/s11663-013-9838-4

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  • DOI: https://doi.org/10.1007/s11663-013-9838-4

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