Research Progress of Iron Recovery from Red Mud

LIU Jiajian; CHEN Wei; ZHOU Kanggen; ZHANG Xuekai; PENG Changhong; HE Dewen

doi:10.13779/j.cnki.issn1001-0076.2021.03.011

2021 Vol. 41, No. 3

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LIU Jiajian, CHEN Wei, ZHOU Kanggen, ZHANG Xuekai, PENG Changhong, HE Dewen. Research Progress of Iron Recovery from Red Mud[J]. Conservation and Utilization of Mineral Resources, 2021, 41(3): 70-75. doi: 10.13779/j.cnki.issn1001-0076.2021.03.011

Citation:

LIU Jiajian, CHEN Wei, ZHOU Kanggen, ZHANG Xuekai, PENG Changhong, HE Dewen. Research Progress of Iron Recovery from Red Mud[J]. Conservation and Utilization of Mineral Resources, 2021, 41(3): 70-75. doi: 10.13779/j.cnki.issn1001-0076.2021.03.011

Research Progress of Iron Recovery from Red Mud

School of Metallurgy and Environment, Central South University, Changsha 410000, China

Received Date: 15 April 2021

Publish Date: 25 June 2021

Abstract

Abstract

Red mud is a strong alkaline solid waste produced in the process of alumina production from bauxite. At present there are not only environmental hazards in the stacking treatment, but also the failure to utilize the rich metal resources. On the basis of summarizing the main properties and disposal status of red mud, this paper introduces the recovery technology of iron resource with the highest content in red mud in detail. The latest iron extraction technology of red mud at home and abroad are summarizes from three aspects of physical separation, pyrometallurgy and hydrometallurgy. And and compares the process routes and technical parameters of different iron extraction methods are explains. The advantages, disadvantages and application scope of each method are reviewed, The development direction of each method is prospected.
- red mud /
- iron concentrate /
- separation and recovery /
- magnetic separation /
- roasting /
- leaching

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References

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