| 摘要 |
In a method of steelmaking in a basic oxygen furnace, a bottom- blowing gas predominantly comprising carbon dioxide is introduced into a molten metal through at least one nozzle provided in the bottom or side wall of a furnace at least partly during the period of time from the beginning of top blowing with oxygen to the tapping of the melt, and the flow rate of the bottom- blowing gas is 1/200-9/100 the rate of oxygen impinged upon the melt through a lance. The bottom-blowing gas preferably composed of flue gas which has been passed through a dust collector and burner. <IMAGE> |
