Method for producing low-carbon steel from iron ores containing

Details Method for producing low-carbon steel from iron ores containing Method for producing low-carbon steel from iron ores containing

1979-09-04

1981-06-23

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 10R, 75 11, C21C 552

Patent

active

042748674

ABSTRACT:
Methods are provided for producing in a single method low-carbon steel, while at the same time selectively obtaining a slag high in vanadium content for separate applications. Moreover, the method allows for the separate production of a slag high in titanium content if the starting materials contain titanium. The above is achieved by introducing the pre-reduced ore directly to an electro slag resistance furnace which is lined with a refractory in accordance with the slag composition being used. The resulting smelted steel is tapped and the slag is tapped separately. The slag, containing the vanadium and small quantities of iron oxides, is then introduced into a reduction furnace. Slag, high in titanium dioxide, if present originally, is then tapped separately from the smelted crude iron, which is tapped with a high vanadium content. Subsequently, the crude iron may be separated from the vanadium in a shaking pan in the presence of oxygen, if so required, depending upon the desired product.

REFERENCES:
patent: 2805930 (1957-09-01), Udy
patent: 3033673 (1962-05-01), Collin
patent: 3150958 (1964-09-01), Collin
patent: 3163520 (1964-12-01), Collin
patent: 3579328 (1971-05-01), Aas

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