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Efficient Recovery of Rare Earth and Iron from Bayan Obo Rare Earth Ore Based on XRF Sorting
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Shenzheng WANG, Xiaoguang PAN, Sui KANG, Tiezhu ZHANG, Xiang JIN
Mining and Metallurgical Engineering | 2025, 45(6) : 78 - 82
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Mining and Metallurgical Engineering | 2025, 45(6): 78-82
• MINERAL PROCESSING •
Efficient Recovery of Rare Earth and Iron from Bayan Obo Rare Earth Ore Based on XRF Sorting
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Shenzheng WANG, Xiaoguang PAN, Sui KANG, Tiezhu ZHANG, Xiang JIN
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  • Baotou Teachers' College, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China
doi: 10.3969/j.issn.0253-6099.2025.06.013
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In order to improve recoveries of rare earth resources, Bayan Obo rare earth ore was taken for research, for which a combined process consisting of XRF sorting, low-intensity magnetic separation (LIMS) and flotation was adopted to recover rare earth elements (REEs )and iron minerals therein. With appropriate parameters, a rough concentrate of rare earth was obtained with a REE grade of 9.44%, recovery of 94.03% and an enrichment ratio of 1.48, and the tailings for discarding had a REE grade of 1.03%, presenting a discarding rate of 5.97%. After that, a process consisting of LIMS and flotation was adopted, producing a rare earth concentrate grading 61.23% REE at 79.81% recovery, with a yield of 19.89%, and the tailings with iron grade of 58.68% at 83.27% recovery. It is concluded that such processing technique can improve the REE grade of the feed into the mill and also simplify the flotation flowchart, providing a new idea for efficient recovery of rare earth ore.

pre-selection for discarding tailings  /  polymetallic ore  /  Bayan Obo  /  rare earth ore  /  XRF sorting  /  enrichment ratio  /  recovery
王慎正, 潘晓光, 康穗, 张铁柱, 金香. 基于X射线分选高效回收白云鄂博稀土矿中的稀土和铁. 矿冶工程杂志, 2025 , 45 (6) : 78 -82 . DOI: 10.3969/j.issn.0253-6099.2025.06.013
Shenzheng WANG, Xiaoguang PAN, Sui KANG, Tiezhu ZHANG, Xiang JIN. Efficient Recovery of Rare Earth and Iron from Bayan Obo Rare Earth Ore Based on XRF Sorting[J]. Mining and Metallurgical Engineering, 2025 , 45 (6) : 78 -82 . DOI: 10.3969/j.issn.0253-6099.2025.06.013
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Year 2025 volume 45 Issue 6
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doi: 10.3969/j.issn.0253-6099.2025.06.013
  • Receive Date：2025-05-30
  • Online Date：2026-10-08
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  • Received：2025-05-30
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    Baotou Teachers' College, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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