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| Research progress on separation technology of manganese and iron in manganese ores |
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Received:November 13, 2024
Revised:February 11, 2025
Accepted:February 11, 2025
Published Online:April 30, 2026
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| DOI：10.3969/j.issn.1005-7854.2025.06.005 |
| KeyWord:manganese-iron ore;manganese-iron separation;unconventional media;rich manganese slag method;comprehensive resource utilization;strategic metal |
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| 1.School of Metallurgy, Northeastern University, Shenyang 110819, China;2.School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China;3.Key Laboratory of Ecological Metallurgy of Polymetallic Symbiotic Minerals, Ministry of Education, Northeastern University, Shenyang 110819, China |
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| Abstract: |
| Manganese is a bulk strategic metal critical to national economic security, yet it is in short supply. Although China's manganese ore resources have considerable reserves, they are predominantly characterized by low Mn/Fe ratio and symbiotic manganese-iron ore, featuring poor ore quality and difficult mining conditions. This has led to an external dependence exceeding 90%, highlighting significant resource supply risks. To address this crucial issue, the efficient separation and comprehensive utilization of manganese and iron resources are of paramount importance. This paper systematically reviews the research progress in separation technologies for manganese-iron ores, with a focused analysis of mainstream methods including magnetic separation, leaching, combined processes, and the rich manganese slag method. It evaluates their separation mechanisms, process parameters, recovery efficiency, and identifies their respective technical bottlenecks. Furthermore, the paper specifically discusses emerging green technologies such as separation enhanced by unconventional media. These methods achieve selective phase transformation and conversion of manganese/iron minerals through directed mediation, offering a new pathway for efficient and low-carbon separation. Future research should focus on the integration of multiple technologies and innovation in green processes to provide key technical support for ensuring the security of China's manganese resources and their clean, efficient utilization. |
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