Tungsten ores are mainly divided into wolframite and scheelite. Wolframite, also known as iron–manganese tungstate, is the most important raw material for tungsten production. In
Wolframite beneficiation method is mainly gravity beneficiation. The technological process includes pre-enrichment and gravity beneficiation.
Because there is a significant density difference between wolframite and gangue, gravity processing is the most effective method.
The commonly used beneficiation processes of scheelite are flotation, gravity separation, and gravity separation-flotation combined process.