Tungsten Ore
- Details
- Category: Tungsten Information
- Published on Monday, 20 July 2015 16:18
The natural mineral formations containing tungsten in amounts that make their extraction economically feasible. The chief minerals of tungsten are wolframite,containing 74-76 percent WO3, and scheelite, containing 80 per-cent WO3. The minimum concentrations of tungsten trioxide at which it is profitable towork tungsten ores at the present level of economic and technological development (1960-70) are of the order of 0.14—0.15 percent for large deposits and 0.4-0.5 percent for smaller, vein deposits. Tungsten ores often contain other useful components (tin, molybdenum, beryllium, gold, copper, lead, and zinc). In addition, the wolframites of some deposits contain large amounts of tantalum and scandium, which can be extracted from them. To obtain concentrates containing 50-60 percent WO3, the ores are enriched using gravitational, flotation, and other methods of concentration.
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