Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Reexamination Certificate
2007-07-03
2007-07-03
King, Roy (Department: 1742)
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
Reexamination Certificate
active
11070527
ABSTRACT:
A process for producing liquid steel is disclosed. Carbon monoxide and oxygen may be combusted in a high temperature reactor. Iron and iron oxide materials, along with scrap steel if desired, may be placed in the high temperature reactor. Carbon dioxide produced in the high temperature reactor may be circulated through a back reactor vessel. Coke masses may be placed in the back reactor vessel. The coke may be formed by circulating heated carbon monoxide counter current to crushed coal in a rotary kiln. The carbon dioxide circulated through the back reactor vessel reacts with the coke to form carbon monoxide. The carbon monoxide may be conveyed to the high temperature reactor to be combusted with oxygen to produce the heat for forming the liquid steel.
REFERENCES:
patent: 1532300 (1925-04-01), Burgi
patent: 2805929 (1957-09-01), Udy
patent: 3029141 (1962-04-01), Sibakin et al.
patent: 3661553 (1972-05-01), Frans
patent: 4145210 (1979-03-01), Kato et al.
patent: 4239530 (1980-12-01), Goksel
patent: 4396423 (1983-08-01), Stephens, Jr. et al.
patent: 4419128 (1983-12-01), Nakagawa et al.
patent: 4434003 (1984-02-01), Geskin
patent: 4456476 (1984-06-01), Sherwood
patent: 4457777 (1984-07-01), MacGregor et al.
patent: 4542114 (1985-09-01), Hegarty
patent: 4940488 (1990-07-01), Maeda et al.
patent: 5064174 (1991-11-01), Lehto et al.
patent: 5065985 (1991-11-01), Takahashi et al.
patent: 5069716 (1991-12-01), Dam et al.
patent: 5076838 (1991-12-01), Rierson
patent: 5100314 (1992-03-01), Rierson
patent: 5139568 (1992-08-01), Geiger
patent: 5246482 (1993-09-01), Murakami et al.
patent: 5454853 (1995-10-01), Edelson
patent: 5496392 (1996-03-01), Sims et al.
patent: 5733358 (1998-03-01), Geiger et al.
patent: 5885325 (1999-03-01), Geiger et al.
patent: 6402808 (2002-06-01), Dry
patent: 2004/0226406 (2004-11-01), Duarte-Escareno et al.
patent: 62-227020 (1987-10-01), None
Encyclopedia of Chemical Technology, Fourth Edition, Kirk-Othmer, vol. 6, p. 504, 1993, John Wiley & Sons inc.
Metals Handbook, Desk Edition, 2ndEdition, 1998, ASM International, p. 1186.
Clayton Howarth & Cannon, P.C.
King Roy
McNelis Kathleen
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