Steelmaking process with separate refining steps

Details Steelmaking process with separate refining steps Steelmaking process with separate refining steps

1983-06-14

1984-07-03

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 52, 75 59, 75 60, C21C 700

Patent

active

044577788

ABSTRACT:
The present invention relates to a steelmaking process, in which the molten pig iron produced in a blast furnace is desiliconized, dephosphorized, decarburized and desulfurized. The characteristic of this invention is a sequence and combination of the refining steps. Namely, the steelmaking process of this invention has individual separate refining steps for realizing a removal reaction of the impurities. The objective reaction is the desiliconization in the first step, the dephosphorization in the second step, the decarburization in the third step and the desulfurization in the fourth step.

REFERENCES:
patent: 3843354 (1974-10-01), Nilles
patent: 3881917 (1975-05-01), Murton

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