Froth floatation process

a. This method is mainly useful for sulphide ores which have a very low or almost no wetting property.

b. The ore with impurities is finely powdered and then is being kept in water containing pine oil all of which are taken in a floatation cell.

c. Air under pressure is blown to produce froth in the mixture prepared above.

d. Froth so produced, takes the ore particles to the top surface whereas impurities settle at the bottom.

e. Forth is separated and washed to obtain ore particles.

The above process is as shown below:-