University of Oulu

Omran, M., Fabritius, T., Yu, Y. et al. Improving Zinc Recovery from Steelmaking Dust by Switching from Conventional Heating to Microwave Heating. J. Sustain. Metall. 7, 15–26 (2021).

Improving zinc recovery from steelmaking dust by switching from conventional heating to microwave heating

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Author: Omran, Mamdouh1,2; Fabritius, Timo1; Yu, Yaowei2;
Organizations: 1Process Metallurgy Research Group, Faculty of Technology, University of Oulu, Oulu, Finland
2State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, Shanghai, China
3Kunming Key Laboratory of Energy Materials Chemistry, Yunnan Minzu University, Kunming, China
4Material Science and Engineering Department, Carnegie Mellon University, Pittsburgh, USA
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 4.9 MB)
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Language: English
Published: Springer Nature, 2021
Publish Date: 2021-01-08


Recently, microwave energy has attracted increasing interest for accelerating thermal reactions. This study investigated the impact of microwave heating on the zinc recovery rate from electric arc furnace (EAF) and chromium converter (CRC) dusts. The results indicated that microwave heating required a lower temperature to recover zinc from EAF and CRC dusts compared with that in conventional thermal heating. For CRC dust, zinc recovery rates of 37.84% and 97.43% were obtained with conventional and microwave heating, respectively, at 850 °C. For EAF dust, zinc recovery rates of 79.88% and 98.20% were obtained with conventional and microwave heating, respectively, at 850 °C. The improved zinc recovery in this study was concluded to results from the rapidity of microwave heating and the interactions between the electromagnetic microwave field and the molecules of heated materials.

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Series: Journal of sustainable metallurgy
ISSN: 2199-3823
ISSN-E: 2199-3831
ISSN-L: 2199-3823
Volume: 7
Pages: 15 - 26
DOI: 10.1007/s40831-020-00319-x
Type of Publication: A1 Journal article – refereed
Field of Science: 218 Environmental engineering
Funding: Open access funding was provided by University of Oulu including Oulu University Hospital. This work was funded by Business Finland under Research Program (SYMMET).
Copyright information: © The Author(s) 2020. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit