Question

Give a brief account of the gravity separation process used for the concentration of ores.

Answer 1

1. Gravity separation, also called levigation, is used for ores where ore particles are heavier than gangue.
2. Powdered ore is washed with a current of water.
3. Lighter gangue particles are washed away by water.
4. Heavier ore particles settle and are collected.
5. This method is simple and common for concentrating oxide ores.
6. It relies on the difference in specific gravity between ore and gangue.
7. This process effectively separates heavy ore minerals from lighter impurities.