Specialized metallurgical processes – compositions for use therei – Compositions – Solid treating composition for liquid metal or charge
Patent
1994-06-10
1995-11-07
Rosenberg, Peter D.
Specialized metallurgical processes, compositions for use therei
Compositions
Solid treating composition for liquid metal or charge
75443, 75958, C22D 700
Patent
active
054644640
ABSTRACT:
A method for reducing particulate iron oxide and/or other iron units to molten iron utilizing gaseous hydrogen as reductant in a reducing furnace, in which the ore freely falls during the melting and reduction process. Reacted top gas is purified and recirculated through the reduction furnace, establishing a counter-flow relationship to the particulate iron oxide, thereby heating and reducing the oxide. The heat for reduction is generated by combusting a fraction of the hydrogen reductant with oxygen. Heat may also be supplied via the use of electric arc heating. Oxygen may be partially or wholly replaced with water in order to maintain reaction oxidizer ratios while reducing heat supplied to the reaction.
REFERENCES:
patent: 2066665 (1937-01-01), Baily
patent: 2249410 (1941-07-01), Wilson
patent: 2287663 (1942-06-01), Brassert
patent: 2503555 (1950-04-01), Lykken
patent: 2862808 (1958-12-01), Jahn
patent: 2951756 (1960-09-01), Cavanagh
patent: 3053648 (1962-09-01), Stephens
patent: 3140168 (1964-07-01), Halley
patent: 3615351 (1971-10-01), Happel
patent: 3862834 (1975-01-01), Waclawiczek
patent: 4072504 (1978-02-01), Perdahl
patent: 4160663 (1979-07-01), Hsieh
patent: 4224056 (1980-09-01), Tomizawa
patent: 4318736 (1982-03-01), Driemeyer
patent: 4421553 (1983-12-01), Ponghis
patent: 4978106 (1990-12-01), Kelmar
Gretz; Korf; Lyons, Hydrogen in the Steel Industry, 1991, Jun., pp. 691-693.
Borealis Technical Incorporated Limited
Rosenberg Peter D.
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