how is tungsten concentrated
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Answer:
Mining and concentrating
Explanation:
Tungsten ores are beneficiated by crushing followed by gravity concentration. Flotation separation is used for scheelite that has been ground to a fine size to liberate the tungsten; this is further supplemented by leaching, roasting, and magnetic or high-tension separation when required.
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Up to 65% of the tungsten recovered is obtained by the Mineral Jig—a product assaying 72-73% WO3. This flowsheet is adapted to concentration of tungsten ore in small tonnages
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