Blast Furnace

Which are the correct 4 Raw Materials used in a blast furnace?

• Hot Air

• Coke

• Limestone

• Iron Ore

• Cryolite

What is the purpose of adding iron ore?

• As a source of iron

• To remove impurities

• To react with coke to form carbon monoxide

• To reduce iron oxide to iron

What is the purpose of adding coke?

• As a source of iron

• To remove impurities

• To react with coke to form carbon monoxide

• To reduce iron oxide to iron

What is the purpose of adding limestone?

• As a source of iron

• To remove impurities

• To react with coke to form carbon monoxide

• To reduce iron oxide to iron

What is the purpose of adding hot air?

• As a source of iron

• To remove impurities

• To react with coke to form carbon monoxide

• To reduce iron oxide to iron

Which gas reduces iron ore?

• CO

• CO₂

• O₂

• C

What is the name for the waste products formed in the Blast Furnace?

• Slag

• Debris

• Haematite

• Cryolite

Which 2 equations correctly show the formation of carbon monoxide in the blast furnace?

• C_(s) + O_2(g) -----> CO₂(g)

• 2C_(s) + O_2(g) -----> 2CO₂(g)

• C_(s) + CO_2(g) -----> CO(g)

• C_(s) + CO_2(g) -----> 2CO(g)

Which 2 equations correctly show the formation of iron in the blast furnace?

• Fe₂O_3(s) + 3CO_(g) -----> 3CO₂(g) + 2Fe_(s)

• 2Fe₂O_3(s) + 6CO_(g) -----> 6CO₂(g) + 2Fe_(s)

• Fe₂O_3(s) + 3C_(s) -----> 3CO₂(g) + 2Fe_(s)

• Fe₂O_3(s) + 3C_(s) -----> 3CO(g) + 2Fe_(s)

Which 2 equations correctly show the formation of slag in the blast furnace?

• CaCO_3(s) -----> CO₂(g) + CaO_(s)

• CaCO_3(s) -----> CO(g) + CaO_2(s)

• CaO_2(s) + SiO_(s) -----> CaSiO_3(s)

• CaO_(s) + SiO_2(s) -----> CaSiO_3(s)