Bessemerization is a process used in the production of steel, named after Sir Henry Bessemer, who developed it in the 19th century. It involves the conversion of molten pig iron into steel by blowing air through the molten iron to oxidize impurities, such as carbon, silicon, and manganese. This method significantly reduced production costs and increased the efficiency of steel manufacturing, laying the foundation for modern steelmaking techniques. Bessemerization revolutionized the steel industry, contributing to advancements in construction, transportation, and various engineering applications.