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separated carbon sieve for fluorite mining

separated carbon sieve for fluorite mining

Fluorite Minerals Education Coalition

Fluorite is commercially named fluorspar composed of calcium fluoride . It is the principal source of fluorine. The same is used in production of hydrofluoric acid, which is used in a wide variety of industrial applications including glass etching. Fluorite tends to occur in well formed isometric crystals, forming cubes and octahedrons. It also occurs in both massive and earthy forms, and as crusts or globular aggregates with radial fibrous texture.

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In some areas, fluorite rich veins may be weathered to depths of as much as 75 m. Such weathered ore, a mixture of clay and fragments of fluorite and detached wall rock, may be mined open pit with draglines, scrapers, or power shovels to depths of as much as 50 m. Below that, underground mining methods, involving modified top slicing or overhead shrinkage stoping, are used. Vein Mining: Vein mining is commonly done by shrinkage stoping, cut and fill, and open stoping where strong walls occur. Closely spaced shrinkage stope bins may give way to widely spaced bins, with electric and air slushers being used in the tops of stopes to transport the overbreak to the ore pass. Air operated, rubber tired, muckhaul units can be adapted to in stope work. Where shrinkage stoping is used, broken ore is commonly moved to the shaft by track haulage using battery powered locomotives and 1 or 2 t side dump cars. With the introduction of diesel haul units of less than 1.5 m in widt...

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The majority of the United States annual consumption of fluorspar is for the production of hydrofluoric acid and aluminum fluoride . HF is a key ingredient for the production of all organic and non organic chemicals that contain the element fluorine. It is also used in the manufacture of uranium. AlF3 is used in the production of aluminum. The remainder of fluorspar consumption is as a flux in making steel, glass, enamel, and other products. A flux is a substance that lowers the melting temperature of a material.

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