Wolframite concentrate and scheelite concentrate are the main industrial raw materials for extracts. Tungsten generally adopts powder metallurgy wet smelting process to produce tungsten powder and tungsten carbide powder. The extraction metallurgy process mainly includes six steps:
(1) Decomposition of tungsten concentrate
(2) Purification of tungsten solution: Purification of tungsten. Production methods include black tungsten concentrate and scheelite concentrate are the main industrial raw materials for extracts.
(3) Compound preparation
(4) Preparation of tungsten powder
(5) Production of dense tungsten
(6) Production of high-purity dense tungsten
Although not entirely part of the production of tungsten products, as the most important and largest application of tungsten, the production of cemented carbide is also the most important link in the tungsten product industry chain.
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