Explain the purificationof sulphide ore by forth floatationmestho
Answers
principal :- this method is based on the difference in the wetability of the ore and gangue when wetted with certain liquid for example oil or water. the four particles are preferentially wetted by oil while the gange you particles are preferentially wetted by Water.
process :- in this process powered ore is put into large tank containing water and small amount of pine oil. when air is blown into the water containing the ore at high pressure froth or foam is formed. the ore particles in the froth are wetted by pine oil whereas the impurities settle down at the bottom of the tank the froth is taken out from the tank and the concentrated Ore is then separated from the froth. this method is used for concentrating sulphide ores especially those of copper zinc and lead
