| Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences | Host |
| Citation: |
TANG Min, DOU Jinglin, ZHANG Hengbo, ZHANG Fengyu. Flotation Study on One Kind of Low-grade Tailing of a Certain Polymetallic Mine in Henan Province[J]. Multipurpose Utilization of Mineral Resources, 2025, 46(5): 95-101. doi: 10.12476/kczhly.202307270413
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Flotation Study on One Kind of Low-grade Tailing of a Certain Polymetallic Mine in Henan Province
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Abstract
An exploration experiment was carried out on the flotation of low-grade scheelite in a polymetallic tailing in Henan. The minelogical characteristics of the tailings process show that the scheelite content of the sample is 0.059%, which is slightly lower than the boundary grade. The scheelite is a valuable recovery component in the tailings. The comprehensive recovery test adopts the flotation process, rough selection and pre-enrichment - heating and drug removal - dilution and selection. Through a small closed-circuit test, the final result is 0.14% of the scheelite, the tungsten grade of 30.99%. The rate of 76.94% is the technical index of beneficiation. This study realises the efficient recovery of tungsten in tailings, which provides a reference for the recovery and utilization of polymetallic tailings of the same type.
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References
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TANG Min, DOU Jinglin, ZHANG Hengbo, ZHANG Fengyu. Flotation Study on One Kind of Low-grade Tailing of a Certain Polymetallic Mine in Henan Province[J]. Multipurpose Utilization of Mineral Resources, 2025, 46(5): 95-101. doi: 10.12476/kczhly.202307270413
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Figure 1.
Flow chart of screening test for room temperature collectors
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Figure 2.
Test results of sodium carbonate dosage
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Figure 3.
Test results of water glass dosage
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Figure 4.
Test results of collector dosage
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Figure 5.
Schematic of rough scanning selection test process
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Figure 6.
Flow chart of room temperature drug removal and selection test
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Figure 7.
Flow chart of heating and drug removal selection test
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Figure 8.
Relationship between NaOH dosage and concentrate grade and recovery rate
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Figure 9.
Closed-circuit test quality flow