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Modern Mining ›› 2024, Vol. 40 ›› Issue (04): 132-.

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Experimental Study on Tungsten Recovery from a Low-grade Tungsten-molybdenum Mine
in Sandaozhuang，Luanchuan County

A low-grade tungsten-molybdenum ore in Sandaozhuang，Luanchuan，Henan contains
about 0.1% WO3. Tungsten mainly exists in the form of scheelite. Due to the fine grain size of tungsten，the
variety and complex properties of gangue minerals，it is difficult to recover tungsten. The tungsten recovery
test was carried out for the low-grade ore. The polysaccharide organic inhibitor LM was used to replace the
sodium silicatein the tungsten roughing separation，and the collector ZF with relatively good collecting and
selectivity was used. The low modulus sodium silicate was used in the tungsten cleaning，which reduced the
consumption of the inhibitor. Finally，the tungsten concentrate with WO3 grade of 31.22% and recovery rate
of 82.84% was obtained from the feed ore with WO3 grade of 0.097 %，which realized the efficient flotation
recovery of the low-grade tungsten resource.
  

  1. 1. School of Resource Processing and Bioengineering，Central South University；
    2. CMOC Group Limited；
    3.Institute of Resource Utilization and Rare Earth Development，Guangdong Academy of Sciences
  • Online:2024-04-15 Published:2024-08-13

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Abstract:

A low-grade tungsten-molybdenum ore in Sandaozhuang，Luanchuan，Henan contains
about 0.1% WO3. Tungsten mainly exists in the form of scheelite. Due to the fine grain size of tungsten，the
variety and complex properties of gangue minerals，it is difficult to recover tungsten. The tungsten recovery
test was carried out for the low-grade ore. The polysaccharide organic inhibitor LM was used to replace the
sodium silicatein the tungsten roughing separation，and the collector ZF with relatively good collecting and
selectivity was used. The low modulus sodium silicate was used in the tungsten cleaning，which reduced the
consumption of the inhibitor. Finally，the tungsten concentrate with WO3 grade of 31.22% and recovery rate
of 82.84% was obtained from the feed ore with WO3 grade of 0.097 %，which realized the efficient flotation
recovery of the low-grade tungsten resource.

Key words:

hibitor