Question

Concentration of carbon monoxide in blast furnace for reduction of iron ore

Answer 1

Answer:

Iron is extracted from its ore, haematite, in a blast furnace. ... The limestone decomposes in the hot furnace, forming calcium oxide. This reacts with the sandy impurities (silicon dioxide) to form a slag.

Answer 2

Extracting iron

Iron is extracted from iron ore in a huge container called a blast furnace. Iron ores such as haematite contain iron(III) oxide, Fe 2O 3. The oxygen must be removed from the iron(III) oxide in order to leave the iron behind. Reactions in which oxygen is removed are called reduction reactions.