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Mosten Alloy Co., Ltd.

Tungsten tailings

  • Mosten
  • 11 Jul

Tungsten tailings is produced in the process of mineral processing. Because the grade of tungsten ore is generally low, it is 0.1% ≤ 0.7%, resulting in a large number of tailings, accounting for more than 90% of the original ore. Most of the tungsten tailings in China have not been used effectively, which are mainly stored in tailings reservoirs or backfilled into mines, resulting in waste of resources, occupation of land, pollution of the environment and harm to human health. Now tungsten tailings has been reasonably utilized, valuable metals tungsten, bismuth and Mo can be recovered from tungsten tailings, and non-metallic ore fluorite and garnet can also be recovered. Tungsten tailings is used in construction industry, cement industry and glass-ceramics.

The tungsten tailings are solid materials which are formed after the tungsten ore is ground and finely selected to be dehydrated by the fine-grained tailings slurry, which is discharged after the tungsten-containing minerals are ground, and is generally composed of ore minerals and surrounding rock minerals, mainly containing fluorite, quartz, garnet and mineral such as mica, calcite and the like, The main chemical components are: SiO2, Al2O3, CaO, CaF2, MgO, Fe2O3, etc. The tungsten tailings have the following characteristics: The large amount of tungsten-tungsten tailings, combined with the huge number of old tailings accumulated over the years, is urgently needed to find the means of large-scale utilization; The tungsten-tungsten tailings contain some rare metal minerals and other non-metallic minerals, and are further extracted, and the resource utilization rate can be effectively improved; And the chemical property of the tungsten trioxide tailings is stable. the hardness is large and the color is shallow; The tungsten-tungsten tailings particles are fine, most of which are less than 200 meshes, and have a great advantage in the application of finer granularity requirements; Part of the tungsten tailings contain heavy metals and poor treatment, which can lead to the pollution of the soil and the river.

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tungsten