what is magnetic separation
Magnetic separation is a process in which valuable minerals which are attracted by magnetic field are recovered from a mixture using a magnetic force.
This technique is used in metallurgy to remove unwanted particles like sand, clay rocks, etc. known as gangue particles from the ore. This method is applicable to those ores which in pure forms are attracted by magnetic field but the impure forms (sand, clay, rocks etc.) of the ore do not. In this process, the ground ore is carried on a travelling band which passes over a magnetic roller. The ore leaves the band and falls from it, the particles are attracted by the magnetic field and form a separated pile.
It is used to remove unwanted gangue particles from magnetite (Fe3O4), chromite (FeCr2O4).
This method is also used to remove tungsten ore particles from cassiterite (SnO2).
@ simran97,
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