Experiment on Mineral Processing of a Mixed Iron Ore

YANG Zhilu; YANG Lei; ZHAO Biwen; SHI Meijia

doi:10.12476/kczhly.202211070702

2025 Vol. 46, No. 5

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Article navigation > Multipurpose Utilization of Mineral Resources > 2025 > 46(5): 108-113

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YANG Zhilu, YANG Lei, ZHAO Biwen, SHI Meijia. Experiment on Mineral Processing of a Mixed Iron Ore[J]. Multipurpose Utilization of Mineral Resources, 2025, 46(5): 108-113. doi: 10.12476/kczhly.202211070702

Citation:

YANG Zhilu, YANG Lei, ZHAO Biwen, SHI Meijia. Experiment on Mineral Processing of a Mixed Iron Ore[J]. Multipurpose Utilization of Mineral Resources, 2025, 46(5): 108-113. doi: 10.12476/kczhly.202211070702

Experiment on Mineral Processing of a Mixed Iron Ore

1.
Xinjiang Nonferrous Metals Research Institute Co., Ltd., Urumqi, Xinjiang 830026, China
2.
Jinchuan Nickel & Cobalt Research and Engineering Institute, Jinchang, Gansu 737100, China

Received Date: 07 November 2022

Publish Date: 25 October 2025

Abstract

Abstract

The iron grade of the mixed ore is 37.81%, and the main iron minerals are siderite and hematite, in which mineral contents are 50.35% and 24.28%, respectively, and the ratio of the two mineral contents is 2.07∶1. According to the properties and characteristics of the iron ore, high-intensity magnetic pre-concentration-neutral roasting process was studied, and good beneficiation indexes were obtained. The test results show that the high-intensity pre-concentration concentrate was obtained with grinding fineness of 80% -0.074 mm, and background field intensity 1 280 kA/m. With roasting temperature 750 ℃ for 20 min in neutral atmosphere, the iron concentrate with iron grade of 63.20% and iron recovery of 74.98% was obtained. It provides economical and reasonable technical basis for the development of mixed iron ore resources.
- mixed iron ore /
- siderite /
- hematite /
- high-intensity magnetic pre-concentration /
- neutral roasting

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References

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