List out the Iron Extraction Method

Iron is chiefly extracted from hematite ore (Fe2O3)

Concentration by Gravity Separation:

  • The powdered ore is washed with steam of water. As a result, the lighter sand particles and other impurities are washed away and the heavier ore particles settle down.

Roasting and Calcination:

  • The concentrated ore is strongly heated in a limited supply of air in a reverberatory furnace. As a result, moisture is driven out and sulphur, arsenic and phosphorus impurities are oxidized off.

Smelting (in a Blast Furnace):

  • The charge consisting of roasted ore, coke and limestone in the ratio of 8:4:1 is smelted in a blast furnace by introducing it through the hopper arrangement at the top.
  • There are three important regions in the furnace.

Also Read

 

Leave a Comment

Your email address will not be published. Required fields are marked *

error: Content is protected !!