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Cyclone Separation and Floatation Process

Question: Describe cyclone separation and floatation process.
Answer.

Cyclone Separation 
When there is a large density difference between ore and impurities, cyclone separation is used. In this method, air is passed through pulverized ore under high pressure. Lighter particles are blown away through the top and heavy particles of ores are stuck to walls by centrifugal force and falls down the funnel. 



Cyclone Separator



Floatation Process: 
 In this process, pulverized ore is fed into a tank containing water and oil detergents mixture. The mixture is continuously shaken with flow of air. Detergent-oil mixture only binds with mineral particles leaving gangue particles behind. Thus, mineral particles rise to the surface as froth where they are skimmed off. The gangue particles fall down the bottom. Floatation method is used for concentration of copper ore.


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