Exercise -III Blast furnace produces pig iron of composition by reduction smelting of iron ore, coke and limestone. The analysis is as follows: Iron ore : Coke : Amount is 600 Kg per ton of pig iron Limestone : pure to produce a slag of Calculate:
Fe balance gives amount of ore = 1721.6 kg. (a) =31% MnO reduced in % = 18.75%
by reduction smelting of iron ore, coke and limestone. The analysis is as follows:
Amount is 600 Kg per ton of pig iron
to produce a slag of 
and of 
reduced in the furnace
