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| Situation and research development on resource utilization of metallurgical dust containing zinc in iron and steel industry |
| LI Qiang1,2,3, CHEN Tiejun1,4, LI Qiyong2,3, ZHOU Xianlin1,4, SHI Yanhong2, CHEN Wangyuan2 |
1. School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China;
2. Resources and Chemical Engineering of San Ming University, Sanming 365004, Fujian, China;
3. Fujian Provincial Key Laboratory of Resources and Environment Monitoring and Sustainable Management and Utilization, Sanming 365004, Fujian, China;
4. Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan 430081, Hubei, China |
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Abstract Metallurgical dust containing zinc is bulk solid waste in iron and steel industry, but it also contains a variety of valuable components. The main methods of treating metallurgical dust containing zinc in iron and steel industry are analyzed, namely, in-plant circulation treatment process, rotary kiln treatment process and rotary hearth furnace treatment process, the in-plant circulation treatment process combined with the rotary hearth furnace treatment process is more in line with the current environmental protection policy requirements. The resource utilization methods of metallurgical dust containing zinc are analyzed, the hydrometallurgical leaching method, vacuum metallurgy method, chloridizing volatilization method, selective reduction method and other methods are difficult to achieve environment-friendly and efficient industrial application, while microwave reduction method can effectively overcome the existing problems of rotary hearth furnace treatment process, and has good research significance and application prospect.
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Received: 01 February 2023
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2023, Vol. 33 
