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Dissolution Mechanisms of Nutrient Elements from Steelmaking Slag into Seawater

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Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016

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Abstract

Steelmaking slag is one of major by-products from steelmaking process and its efficient recycling is essential to establish the environmentally-friendly steelmaking industry. Recently steelmaking slag has been recognized as an effective supplier of nutrient elements to recover the ocean environment from sea desertification. It is believed that the efficient dissolution of iron ion is critical to rehabilitate the damaged sea coast, while the solubility of iron ion in seawater is much below the required concentration. Therefore, the simultaneous addition of humic acids to steelmaking slag is necessary to produce the stable chelated iron ion in seawater. In the present paper, the effect of natural substances containing humic acids or a chemical organic acid on the dissolution behavior of nutrient elements from steelmaking slag was studied and the dissolution mechanisms of steelmaking slag into seawater were discussed.

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Author information

Authors and Affiliations

  1. Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8561, Japan

    Hiroyuki Matsuura, Qian Zhou, Fuminori Katabe, Likun Zang, Guohua Zhang & Fumitaka Tsukihashi

  2. School of Chemistry and Biological Engineering, University of Science and Technology Beijing, 30 Xue Yuan Road, Haidian District, Beijing, 100083, China

    Likun Zang

  3. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, 30 Xue Yuan Road, Haidian District, Beijing, 100083, China

    Guohua Zhang

Authors
  1. Hiroyuki Matsuura
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  2. Qian Zhou
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  3. Fuminori Katabe
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  4. Likun Zang
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  5. Guohua Zhang
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  6. Fumitaka Tsukihashi
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Editor information

Editors and Affiliations

  1. The University of Alabama, USA

    Ramana G. Reddy (Conference Chair) (Conference Chair)

  2. Global R&D, ArcelorMittal USA, USA

    Pinakin Chaubal (Co-chair) (Co-chair)

  3. Carnegie Mellon University, USA

    P. Chris Pistorius (Co-chair) (Co-chair)

  4. Boston University, USA

    Uday Pal (Co-chair) (Co-chair)

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© 2016 TMS (The Minerals, Metals & Materials Society)

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Matsuura, H., Zhou, Q., Katabe, F., Zang, L., Zhang, G., Tsukihashi, F. (2016). Dissolution Mechanisms of Nutrient Elements from Steelmaking Slag into Seawater. In: Reddy, R.G., Chaubal, P., Pistorius, P.C., Pal, U. (eds) Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016. Springer, Cham. https://doi.org/10.1007/978-3-319-48769-4_88

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