Chemistry
Give reasons for the following:
Magnetic separation is not used during the dressing of bauxite ore in the extraction of aluminium.
Metallurgy
27 Likes
Answer
In bauxite ore, the gangue minerals are fine grained and intimately locked with the ore making magnetic separation extremely difficult. On the other hand, Aluminium is highly reactive metal. Dressing of bauxite ore through chemical leaching by Baeyer's process is much easier. Hence, magnetic separation is not used during the dressing of bauxite ore in the extraction of aluminium.
Answered By
17 Likes
Related Questions
Give reasons for the following:
An electromagnetic wheel is used in the magnetic separation process of ore from gangue.Give reasons for the following:
In the froth floatation process, the ore floats on the top & the gangue settles down.Give reasons for the following:
Conversion of concentrated ore to it's oxide is an essential step in the extraction of metals from the ore, even then the step is not necessary in the metallurgy of aluminium.Give reasons for the following:
Roasting of the concentrated ore is carried out in the presence of excess air, while calcination of the concentrated ore in the absence or limited supply of air.