How iron is made - material, manufacture, making, history, used .Iron ore is converted into various types of iron through several processes. . is roasted with coke and lime to remove a large amount of the impurities in the ore.iron ore types impurities,Removal of Silica and Alumina as Impurities from Low-Grade Iron .May 18, 2018 . containing 31.10 mass% grade of iron and more than 38 mass% silica-alumina gangue minerals as impurities was used. The ore contains high.
iron ore types impurities