Question

The maximum temperature that can be achieved in blast furnace is ______.

Options

• up to 5000 K

• up to 1200 K

• up to 2200 K

• up to 1900 K

Answer 1

The maximum temperature that can be achieved in blast furnace is up to 2200 K.

Explanation:

In a blast furnace, the maximum temperature is attained at the bottom (combustion zone), where coke burns in the blast of hot air. This temperature may reach up to 2200 K, which is necessary for the reduction of iron oxides and the formation of molten pig iron. Higher temperatures ensure the complete smelting of iron ore and fusion of slag.