Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1980-10-24
1982-07-20
Rosenberg, P. D.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 11, 75 12, C22B 400
Patent
active
043404200
ABSTRACT:
A method of manufacturing stainless steel comprising the steps of injecting a starting material containing chromium oxide and iron oxide into the lower portion of a reactor, said reactor containing a solid reducing agent, passing said starting material into a reduction zone within said lower portion, said reduction zone being maintained by the use of a plasma generator adjacent thereto, substantially instantaneously reducing and melting said starting material in said reduction zone, and removing the melted and reduced chromiferous product from the bottom of the reactor. The chromiferous product may then be further refined in an AOD convertor or the like.
REFERENCES:
patent: 3615348 (1971-10-01), Tanczyn
patent: 3728101 (1973-04-01), d'Entremont
patent: 4072504 (1978-02-01), Perdahl
patent: 4235623 (1980-11-01), Rath
Edstrom John O.
Santen Sven
Rosenberg P. D.
SKF Steel Engineering Aktiebolag
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