Refining and/or alloying of a 3 percent to 6 percent carbon iron

Details Refining and/or alloying of a 3 percent to 6 percent carbon iron Refining and/or alloying of a 3 percent to 6 percent carbon iron

1984-03-16

1987-03-24

Brody, Christopher W.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 45, 75 53, 75 05R, 75 05BA, 75 82, 206 8, C21B 1500

Patent

active

046523073

ABSTRACT:
An iron containing 3% to 6% carbon and small quantities of manganese, silicon, sulfur and phosphorus produced by the blast furnace, electric furnace, or other well-known furnace requires a relatively low temperature to convert to the molten state. This molten iron can be refined on the surface of molten silver at temperatures from 1000.degree. C. to 1525.degree. C. containing on the surface of the molten metal an oxide of lead or oxides of nickel, cobalt, iron, manganese, copper, zinc, and other metals whose oxides are reducible to the elemental state by carbon resulting in a refined or alloyed steel. The carbon monoxide formed in this reaction may be combined with hydrogen at temperatures from 400.degree. C. to 1000.degree. C. and 100 atmospheres to 150 atmospheres in the presence of a proper catalyst according to the known Fischer-Tropsch reaction to form a petroleum product. Alternately a finely ground iron containing 3% carbon to 6% carbon can be furnaced at 1000.degree. C. to 1525.degree. C. to produce either iron powder to fabricate iron powder parts or a steel billet to make steels of any shape or form with rolling equipment. Also the carbides of nickel, cobalt, and other elements can be converted to the elemental state by reaction with an oxide on the surface of the molten metal.

REFERENCES:
patent: 4406695 (1983-09-01), Gardner

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