Question

The temperature in the slag formation zone in the blast furnace is ______.

Options

• 1775-2000K

• 875-1075 K

• 1075-1475 K

• 1075-975 K

Answer 1

The temperature in the slag formation zone in the blast furnace is 875-1075 K.

Explanation:

In the blast furnace, the slag formation zone is where impurities like silica (SiO₂) react with limestone (CaCO₃) to form slag. This reaction happens at a temperature of about 1075-1475 K. The slag helps to remove impurities and protect molten iron from oxidation.