Question

Give some examples of magnetic separation.

Answer 1

Magnetic separation

1. Magnetic separation is the process of separating components of mixtures by using a magnet to attract magnetic substances.
2. The process that is used for magnetic separation separates non-magnetic substances from those which are magnetic.
3. In the figure, we can see the powdered ore coming out through the tap is rolled over a magnetic roller which attracts the magnetic particles in the ore.
4. The non-magnetic particles fall off straight from the magnetic roller as there is no attraction between them and the magnetic roller. Whereas the magnetic particles move a little more with the roller and fall at another place making them separated.

Examples

1. A mixture of iron filling and sulphur powder can be separated by using a magnet.
2. Magnetic separation is used in the process of concentrating an ore.
3. It is used by pollution control boards to separate magnetic waste from scraps like aluminum cans, iron nails, coins, etc., thus helping to segregate waste.
4. Magnetic separation is also used in the following industries: dairy, grain and milling, plastics, food, chemical, oils, textile, and more.