Preparation of Metallized Pellets from Blast Furnace Dust and Electric Arc Furnace Dust Based on Microwave Impedance Matching

Lei Ye, Zhiwei Peng, Qing Ye, Liancheng Wang, Robin Augustine, Joonho Lee, Yong Liu, Mudan Liu, Mingjun Rao, Guanghui Li, Tao Jiang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Blast furnace dust and electric arc furnace dust are two typical solid wastes in iron and steel industry. In order to overcome the shortcomings of traditional processes, such as low metal recovery efficiency and high secondary pollution, microwave energy was applied in this study to intensify the self-reduction of core-shell BF dust-EAF dust composite pellets based on impedance matching for realizing highly efficient migration and separation of iron, zinc, and lead. By reducing the composite pellets in microwave field, it was found that under the optimal conditions of proportion of EAF dust in shell to all EAF dust in the pellet of 20%, reduction temperature of 1000 °C, and dwell time of 15 min, metallized pellets with the total iron content of 68.73 wt %, iron metallization degree of 95.87%, zinc removal percentage of 88.78%, lead removal percentage of 94.38%, and compressive strength of 190.4 N/p were obtained.

Original languageEnglish
Title of host publication11th International Symposium on High-Temperature Metallurgical Processing, TMS 2020
EditorsZhiwei Peng, Jiann-Yang Hwang, Jerome P. Downey, Dean Gregurek, Baojun Zhao, Onuralp Yücel, Ender Keskinkilic, Tao Jiang, Jesse F. White, Morsi Mohamed Mahmoud
PublisherSpringer
Pages569-579
Number of pages11
ISBN (Print)9783030365394
DOIs
Publication statusPublished - 2020 Jan 1
Event11th International Symposium on High-Temperature Metallurgical Processing, held in conjunction with the 149th Annual Meeting and Exhibition, TMS 2020 - San Diego, United States
Duration: 2020 Feb 232020 Feb 27

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Conference

Conference11th International Symposium on High-Temperature Metallurgical Processing, held in conjunction with the 149th Annual Meeting and Exhibition, TMS 2020
CountryUnited States
CitySan Diego
Period20/2/2320/2/27

Keywords

  • BF dust
  • EAF dust
  • Impedance matching
  • Microwave
  • Self-reduction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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  • Cite this

    Ye, L., Peng, Z., Ye, Q., Wang, L., Augustine, R., Lee, J., Liu, Y., Liu, M., Rao, M., Li, G., & Jiang, T. (2020). Preparation of Metallized Pellets from Blast Furnace Dust and Electric Arc Furnace Dust Based on Microwave Impedance Matching. In Z. Peng, J-Y. Hwang, J. P. Downey, D. Gregurek, B. Zhao, O. Yücel, E. Keskinkilic, T. Jiang, J. F. White, & M. M. Mahmoud (Eds.), 11th International Symposium on High-Temperature Metallurgical Processing, TMS 2020 (pp. 569-579). (Minerals, Metals and Materials Series). Springer. https://doi.org/10.1007/978-3-030-36540-0_51