| 摘要 |
A process for desulfurizing molten iron using a fine-grain agent consisting essentially of industrial calcium carbide, a dried coal, the coal containing at least 15% by weight of volatile components, and fine-grained magnesium and which agent is injected in fluidized form into an iron melt by means of a gas, comprising separately storing fine-grained magnesium and a calcium carbide/coal mixture, separately fluidizing the fine-grained magnesium and calcium carbide/coal mixture, combining the fluidized fine-grained magnesium and calcium carbide/coal mixture in a conveying line or lance and injecting the resultant combined fluidized mixture into an iron melt. A process for desulfurizing molten iron using a fine-grain agent consisting essentially of industrial calcium carbide, a dried coal, the coal containing at least 15% by weight of volatile components, and fine-grained magnesium and which agent is injected in fluidized form into an iron melt by means of a gas, comprising separately storing fine-grained magnesium, calcium carbide and coal, separately fluidizing the fine-grained magnesium, the calcium carbide and the coal, combining the fluidized fine-grained magnesium, the calicum carbide and the coal in a conveying line or lance and injecting the resultant combined fluidized mixture into an iron melt.
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