Question

Hydraulic washing is used for concentration of the ore during a metallurgical processes.

• A. True
• B. False

Answer 1

The correct option is A True

Hydraulic washing is used for separating ore and gangue particles based on their difference in specific gravities. It is one of the methods used for the concentration of the ore.

During this process, crushed ore particles with impurities are poured on a slopy surface and washed with controlled flow of water.

Impurities having less density are carried away with the water. Ore particles having higher density are left behind as they can not be carried away with the water.