[Know Tungsten] Tungsten Processing

Concentrates are the primary tungsten sources and scrap is the secondary tungsten sources in the tungsten processing.

Concentrates (Primary Tungsten Sources)

Modern processing methods dissolve scheelite and wolframite concentrates by an alkaline pressure digestion, using either a soda or a concentrated NaOH solution. The sodium tungstate solution obtained is purified by precipitation and filtration, before it is converted into an ammonium tungstate solution. 

 

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