The concentration of an ore involves different methods depending upon the differences in physical properties of compounds or the metal present and the nature of the gangue.
The common methods of concentration of ore are as follows :
1. Gravity separation or hydraulic washing :
This can be carried out by two processes as follows :
- Hydraulic washing by using Wilfley’s table method
- Hydraulic classifier methods.
2. Magnetic separation
3. Froth flotation process.
4. Leaching.
The method depends upon the nature of ore.
