Discuss the magnetic separation process.[OR]
How will you separate magnetic ores from non-magnetic ores?

Explanation

Magnetic separation:This method is applicable to ferromagnetic ores and it is based on the difference in the magnetic properties of the ore and the impurities.For example tin stone can be separted from the wolframite impurities which is magnetic .Similarly,Ores such as chromite ,pyrolusite having magnetic property can be removed from the non magnetic siliceous impurities .The crushed ore is poured on to an electromagnetic separator consisting of a belt moving over two roller of which one is magnetic .The magnetic part of the ore is attracted towards the magnet and falls as a heap close to the magnetic region while the nonmagnetic part falls away from it as shown in the figure.