Question

Give the principles of:
(a) Hydrolytic method
(b) Froth floatation process
(c) Electromagnetic separation

Answer 1

(a) Hydrolytic method: The main criterion is the difference in densities of the ore and the gangue.

(b) Froth floatation process: This process depends on the preferential wettability of the ore with oil and the gangue particles by water.

(c) Electromagnetic separation: This process depends on the magnetic properties of the ore and the gangue particles.