Question

During the extraction of iron, slag produced is:​

Answer 1

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. The slag can be used in making roads.

Answer 2

Answer:

Slag is produced when Iron is extracted from Haematite(iron ore) in the blast furnace.

Explanation:

• Slag is a waste that gets separated from the metal when the smelting process takes place.
• It is produced when lime and silica are added in the blast furnaces.
• Slag allows the impurities to be removed that is from the gangue as it melts resulting in the formation of oxides.
• Protects the weld from oxidation and contamination.