Tungsten Metallurgy - Mineral Processing & Metallurgy
Flotation of Tungsten Ores. Scheelite is the easiest of the tungsten minerals to recover by flotation. Fatty acids or fatty acid soaps, such as oleic acid or sodium oleate with an alkaline dispersing agent such as sodium silicate, soda ash or caustic soda, are the common reagents which are used for scheelite.