近年来,直接还原炼铁法得到了迅速发展。尤其是在蕴藏有丰富天然气的产油国,直接还原炼铁法占据了炼铁的主导地位。在盛产天然气的中近东,中南美地区,以还原铁为主要原料的电炉炼钢法发展很快。在先 In recent years, direct reduction ironmaking method has been rapid development. Especially in oil-producing countries with rich natural gas, the direct reduction ironmaking method occupies the dominant position of ironmaking. In the mid-to-east, central and southern America, where natural gas is abundant, the electric furnace steelmaking with reduced iron as the main raw material has developed rapidly. First