C - Chemistry – Metallurgy – 21 – B
Patent
C - Chemistry, Metallurgy
21
B
C21B 11/10 (2006.01) C21B 13/12 (2006.01) C21C 1/08 (2006.01) C21C 5/52 (2006.01) H05B 7/07 (2006.01) H05B 7/102 (2006.01) H05B 7/107 (2006.01) H05B 7/14 (2006.01)
Patent
CA 2219763
A submerged arc furnace (10) produces foundry iron from scrap iron and steel sources where little or no slag is produced. Scrap iron or steel is fed into the submerged arc furnace (10) with a source of silica and a carbonaceous reducing agent. The scrap iron and steel is melted while simultaneously smelting the silica in the presence of the carbonaceous reducing agent. The amount of the silica source and carbonaceous reducing agent are added in an amount to selectively control the silicon and carbon content of the resulting foundry iron.
Un four à arc submergé (10) produit de la fonte de moulage à partir de mitrailles de fer et d'acier générant peu ou pas de scories. La mitraille de fer ou d'acier est introduite dans le four à arc submergé (10) avec une source de silice et un agent réducteur carboné. Cette mitraille est fondue tandis que la silice est fondue simultanément en présence de l'agent réducteur carboné. La source de silice et l'agent réducteur carboné sont ajoutés en une quantité permettant de réguler sélectivement la teneur en silicium et en carbone de la fonte de moulage obtenue.
Alabama Power Company
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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