why calcium oxide added during the extraction of iron
Answers
Answered by
0
because it is a strong reducing agent
Answered by
0
Iron is extracted from its ore, haematite, in a blast furnace. The molten iron is then tapped from the bottom of the furnace. The limestone decomposes in the hot furnace, forming calcium oxide. This reacts with the sandy impurities (silicon dioxide) to form a slag.
Similar questions