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Experimental Research on Beneficiation of Complex Low-Grade Associated Fluorite Ore in Hunan Province
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Luan YI1, Ming LIU1, Hualing YANG1, Changfu WANG1, Zeping DOU2
Mining and Metallurgical Engineering | 2025, 45(4) : 84 - 89
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Mining and Metallurgical Engineering | 2025, 45(4): 84-89
• MINERAL PROCESSING •
Experimental Research on Beneficiation of Complex Low-Grade Associated Fluorite Ore in Hunan Province
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Luan YI1, Ming LIU1, Hualing YANG1, Changfu WANG1, Zeping DOU2
Affiliations
  • 1.Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, Hunan, China
  • 2.Changsha Institute of Mining Research Co., Ltd., Changsha 410012, Hunan, China
Published: 2025-08-01 doi: 10.3969/j.issn.0253-6099.2025.04.015
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Under the current production conditions, the fluorite concentrate obtained from the associated fluorite resources in a mine of Hunan Province has its processing indicators undesirable and fluctuating widely. In view of this technical bottleneck, a new processing technique was developed to recover such kind of fluorite ore for improving the quality of resources. In this technique, a principle of alkaline environment followed by acidic environment was adopted in the cleaning stage, and also the middlings obtained from the cleaning stage are returned to be processed again. As a result, a full-process closed-circuit test yielded 13.67% high-grade fluorite concentrate grading 96.11% CaF2 at 60.13% recovery, and 3.93% low-grade fluorite concentrate grading 85.08% CaF2 at 15.34% recovery. The comprehensive concentrate has a CaF2 grade up to 93.65%, with total recovery of 75.47%. It is concluded that this low-grade associated fluorite ore can be efficiently and comprehensively recovered using this technique.

fluorite  /  flotation  /  collector  /  depressor  /  associated fluorite ore
Luan YI, Ming LIU, Hualing YANG, Changfu WANG, Zeping DOU. Experimental Research on Beneficiation of Complex Low-Grade Associated Fluorite Ore in Hunan Province[J]. Mining and Metallurgical Engineering, 2025 , 45 (4) : 84 -89 . DOI: 10.3969/j.issn.0253-6099.2025.04.015
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Year 2025 volume 45 Issue 4
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Article Info
doi: 10.3969/j.issn.0253-6099.2025.04.015
  • Receive Date：2025-02-10
  • Online Date：2026-03-05
  • Published：2025-08-01
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  • Received：2025-02-10
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    1.Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, Hunan, China
    2.Changsha Institute of Mining Research Co., Ltd., Changsha 410012, Hunan, 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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