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Machine translation
1. (WO1980002034) MANUFACTURE OF STEEL FROM IRON ORES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/002034    International Application No.:    PCT/US1980/000307
Publication Date: 02.10.1980 International Filing Date: 21.03.1980
IPC:
C21B 13/14 (2006.01)
Applicants:
Inventors:
Priority Data:
24410 27.03.1979 US
Title (EN) MANUFACTURE OF STEEL FROM IRON ORES
(FR) FABRICATION D"ACIER A PARTIR DE MINERAIS DE FER
Abstract: front page image
(EN)The production of relatively low phosphorous, semifinished steel from blended presized granules of high phosphorous iron ore and limestone, directly and selectively reducing the iron oxide to sponge iron and calcined lime with the current of hot reducing gases in a shaft furnace (15) charging heated granules directly to a melting furnace (F) to obtain semifinished steel and slagging off phosphorous and other undesirable components and thereafter refining the semifinished steel in a conventional electric furnace.
(FR)La production d"acier semi fini a teneur en phosphore relativement faible a partir de grenailles precalibrees melangees de minerai de fer a haute teneur en phosphore et de pierre a chaux, consiste a reduire directement et selectivement l"oxyde de fer pour eponger le fer et la chaux calcinee avec le courant de gaz chaud de reduction dans un four a cuve (15), a charger les grenailles chauffees directement dans un four de fusion (F) pour obtenir de l"acier semi fini et a effectuer le decrassage de composants phosphoreux et autres composants indesirables puis a raffiner l"acier semi fini dans un four electrique conventionnel.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)