Write about froth flotation..??

1.	Write about froth flotation..??
Answer» Froth flotation ---- it is specially meant for sulphide ores. Firstly water is qdded to ore then pine oil or eucalyptus oil is added and mixed they evaporate after some time as they are volatile. Excess of air is passed through it when it is boiled. The ore which is oil soluble mixes with the ore and forms froth or better called foam. This froth then comes to surface which van be then removed and the gangue remains below.........hope this helps you..... This method is employed for the concentration of sulphide ores. The finely powdered ore is added to water in a tank containing pine oil. The mixture is agitated by blowing a blast of air. The ore particle preferentially wetted by oil come to the surface with froth while impurities which are wetted with water become heavier and settle at the bottom. The oil froth containing mineral particles which floats on froth containing mineral particles which floats on the surface of the water can be skimmed off easily.Ex : The concentration of copper pyrites, galena are done by this method. Here concentration means removal of gangue from the ore and froth flotation is mainly used for sulphide ores .....ab clear hai?? Thanks but can you explain it more Froth flotation is used for concentration process of sulphide ores....

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