Question

The principle behind froth floatation method involves the difference in the ________of the ore and the gangue particles.

• A. solubility properties
• B. wetting properties
• C. weight
• D. specific gravity

Answer 1

The correct option is B

wetting properties

Froth floatation process depends on the wetting property of both ore particles and impurities. It is used for the concentration of sulphide ores.

$\bullet$ Ore particles along with impurities is poured into a mixture of oil and water.

$\bullet$ Ore particles are wetted by oil and floats as froth.

$\bullet$ Gangue particles is wetted by water and it settles down.