Question

How is the Iron ore is concentrated? Describe it briefly.

Answer 1

Ore cannot be obtained in its pure state and may contain some unwanted earthly materials called gangue.

• The concentration of the ore of Iron is done by the magnetic separation method.
• The method works on the principle of the difference between the magnetic properties of the ore and the gangue.
• This method is used when either of the two, gangue or the ore is magnetic.
• In this method, the powdered ore is dropped over a conveyor belt moving over two rollers, one of which is magnetic.
• When the powdered ore moves over the roller, the magnetic and non-magnetic materials get separated.