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Study on Grain Size and Porosity of the Produced Lime from Limestone in Early Converter Slag

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9th International Symposium on High-Temperature Metallurgical Processing (TMS 2018)

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

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Abstract

Grain size and porosity of the produced lime from limestone in early converter slag and the influence of slag temperature in the range of 1300–1400 °C were investigated. The experimental results showed that both the grain size and porosity of the produced lime depended significantly on the slag temperature. After the complete decomposition time of limestone, grain size and porosity changed under the role of CaO grain growth. Grain size evolved sharply with slag temperature, which was illustrated by an analysis on the relationship between grain size and reaction time. Meanwhile, higher porosity was reached at 1400 °C due to the higher concentration gradient of CO2 between the reaction interface and slag bulk. A proposal to obtain the produced lime with finer grain size and higher porosity was given in this paper.

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Acknowledgements

The authors thank National Natural Science Foundation of China for the financial support of this work (Grant No. 51374062, 51574066, 51574065, 51374057).

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Authors and Affiliations

  1. School of Metallurgy, Northeastern University, Shenyang, 110819, Liaoning, China

    Guangzong Zhang, Nan Wang, Min Chen, Haohua Deng & Xiaoao Li

Authors
  1. Guangzong Zhang
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  2. Nan Wang
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  3. Min Chen
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  4. Haohua Deng
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  5. Xiaoao Li
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Corresponding author

Correspondence to Nan Wang .

Editor information

Editors and Affiliations

  1. Michigan Technological University, Houghton, Michigan, USA

    Jiann-Yang Hwang

  2. Central South University, Changsha, China

    Tao Jiang

  3. Proval Partners SA, Lausanne, Switzerland

    Mark William Kennedy

  4. RHI AG, Leoben, Austria

    Dean Gregurek

  5. Rio Tinto Kennecott Utah Copper Corp, South Jordan, Utah, USA

    Shijie Wang

  6. The University of Queensland, Brisbane, Queensland, Australia

    Baojun Zhao

  7. Istanbul Technical University, Istanbul, Turkey

    Onuralp Yücel

  8. Atilim University, Ankara, Turkey

    Ender Keskinkilic

  9. Montana Tech of the University of Montana, Butte, Montana, USA

    Jerome P Downey

  10. Central South University, Changsha, China

    Zhiwei Peng

  11. University of Concepción, Concepción, Chile

    Rafael. Padilla

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© 2018 The Minerals, Metals & Materials Society

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Zhang, G., Wang, N., Chen, M., Deng, H., Li, X. (2018). Study on Grain Size and Porosity of the Produced Lime from Limestone in Early Converter Slag. In: Hwang, JY., et al. 9th International Symposium on High-Temperature Metallurgical Processing. TMS 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-72138-5_60

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