Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1988-06-17
1989-05-23
Rosenberg, Peter D.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 53, C21C 702
Patent
active
048327395
ABSTRACT:
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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patent: 4687512 (1987-08-01), Schrodter
Gmohling Werner
Meichsner Walter
Peters Karl-Heinz
Tutte Manfred
Rosenberg Peter D.
SKW Trostberg AG
Thyssen Stahl AG
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