Recovery of Zinc and Iron from Steel Mill Dust—An Overview of Available Technologies

The global shortage of zinc mines makes the extraction of zinc from zinc-containing wastes a hot research topic. Most kinds of steel mill dust (SMD) cannot be directly returned to the ironmaking and steelmaking processes due to their zinc content. A large amount of SMD produced during steelmaking ha...

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Main Authors: Yang Xue, Xiansheng Hao, Xiaoming Liu, Na Zhang
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/15/12/4127
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author Yang Xue
Xiansheng Hao
Xiaoming Liu
Na Zhang
author_facet Yang Xue
Xiansheng Hao
Xiaoming Liu
Na Zhang
author_sort Yang Xue
collection DOAJ
description The global shortage of zinc mines makes the extraction of zinc from zinc-containing wastes a hot research topic. Most kinds of steel mill dust (SMD) cannot be directly returned to the ironmaking and steelmaking processes due to their zinc content. A large amount of SMD produced during steelmaking has become a major challenge for steel plants due to environmental pollution, health issues and land scarcity. Lots of processes for recovering metals from SMD have been developed to comprehensively utilize them and solve these environmental problems. Zinc in SMD can be recovered by these technologies, and the residue can be used as raw material for ironmaking. In this work, the sources and characteristics of SMD from different processes were analyzed firstly. Then, the mechanisms of physical, hydrometallurgical, pyrometallurgical and pyrometallurgy–hydrometallurgy combined processes for SMD disposal are presented, and these methods are compared in terms of energy consumption, process complexity and industrial application. Finally, suggestions and prospects for utilization of SMD are put forward.
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spelling doaj.art-637bb8c49d77468b8ab5d2fa2a114e492023-11-23T17:43:05ZengMDPI AGMaterials1996-19442022-06-011512412710.3390/ma15124127Recovery of Zinc and Iron from Steel Mill Dust—An Overview of Available TechnologiesYang Xue0Xiansheng Hao1Xiaoming Liu2Na Zhang3State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, ChinaBeijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaThe global shortage of zinc mines makes the extraction of zinc from zinc-containing wastes a hot research topic. Most kinds of steel mill dust (SMD) cannot be directly returned to the ironmaking and steelmaking processes due to their zinc content. A large amount of SMD produced during steelmaking has become a major challenge for steel plants due to environmental pollution, health issues and land scarcity. Lots of processes for recovering metals from SMD have been developed to comprehensively utilize them and solve these environmental problems. Zinc in SMD can be recovered by these technologies, and the residue can be used as raw material for ironmaking. In this work, the sources and characteristics of SMD from different processes were analyzed firstly. Then, the mechanisms of physical, hydrometallurgical, pyrometallurgical and pyrometallurgy–hydrometallurgy combined processes for SMD disposal are presented, and these methods are compared in terms of energy consumption, process complexity and industrial application. Finally, suggestions and prospects for utilization of SMD are put forward.https://www.mdpi.com/1996-1944/15/12/4127steel mill dustzincrecoveryhydrometallurgypyrometallurgy
spellingShingle Yang Xue
Xiansheng Hao
Xiaoming Liu
Na Zhang
Recovery of Zinc and Iron from Steel Mill Dust—An Overview of Available Technologies
Materials
steel mill dust
zinc
recovery
hydrometallurgy
pyrometallurgy
title Recovery of Zinc and Iron from Steel Mill Dust—An Overview of Available Technologies
title_full Recovery of Zinc and Iron from Steel Mill Dust—An Overview of Available Technologies
title_fullStr Recovery of Zinc and Iron from Steel Mill Dust—An Overview of Available Technologies
title_full_unstemmed Recovery of Zinc and Iron from Steel Mill Dust—An Overview of Available Technologies
title_short Recovery of Zinc and Iron from Steel Mill Dust—An Overview of Available Technologies
title_sort recovery of zinc and iron from steel mill dust an overview of available technologies
topic steel mill dust
zinc
recovery
hydrometallurgy
pyrometallurgy
url https://www.mdpi.com/1996-1944/15/12/4127
work_keys_str_mv AT yangxue recoveryofzincandironfromsteelmilldustanoverviewofavailabletechnologies
AT xianshenghao recoveryofzincandironfromsteelmilldustanoverviewofavailabletechnologies
AT xiaomingliu recoveryofzincandironfromsteelmilldustanoverviewofavailabletechnologies
AT nazhang recoveryofzincandironfromsteelmilldustanoverviewofavailabletechnologies