Method and installation for producing molten steel from ferrous

Details Method and installation for producing molten steel from ferrous Method and installation for producing molten steel from ferrous

1994-05-26

1996-10-08

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 1041, 75 1045, 75583, 373 78, C21C 552

Patent

active

055627536

ABSTRACT:
Both a method and apparatus for producing molten steel are provided wherein ferrous materials rich in carbonaceous materials are fused in a first vessel of a single electric furnace having separate first and second vessels. The carbonized molten metal thus obtained is then pretreated in a separate pretreatment facility to remove contaminants and the pretreated molten metal is then decarburized in the second vessel of the electric furnace. The decarburization of the pretreated metal in the second vessel of the furnace avoids reintroducing contaminants into the steel by avoiding contact between the pretreated metal and the slag produced when the initial carbonaceous materials are fused. Preferably, the first and second vessels are two vessels of a single electric furnace having a single electric power source.

REFERENCES:
patent: 2978315 (1961-04-01), Schenck
patent: 3610795 (1969-10-01), Antoine
patent: 4200452 (1980-04-01), Savov

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