A method of producing metals and metal alloys

Details A method of producing metals and metal alloys A method of producing metals and metal alloys

C - Chemistry, Metallurgy

22

B

C22B 5/10 (2006.01) C21B 13/00 (2006.01) C21C 5/28 (2006.01) C21C 5/32 (2006.01) C21C 7/00 (2006.01) C22B 5/14 (2006.01) F27B 3/22 (2006.01) F27D 3/18 (2006.01)

Patent

CA 2217353

A method and an apparatus for producing metals and metal alloys from metal oxides in a metallurgical vessel containing a molten bath having a metal layer and a slag layer is disclosed. The method is characterised by injecting a carrier gas and a solid carbonaceous material and/or metal oxides into the molten bath from a side of the vessel that is in contact with the molten bath or from above the molten bath so that the solids penetrate the molten bath and cause molten metal to be projected into the gas space above the molten bath to form a transition zone. The method is also characterised by injecting an oxygen-containing gas into the gas space to post-combust reaction gases released from the molten bath into the transition zone.

Procédé et appareil de production de métaux et d'oxydes métalliques dans une cuve métallurgique renfermant un bain en fusion présentant une couche de métal et une couche de scories. Le procédé consiste à injecter un gaz porteur et un matériau solide carboné et/ou des oxydes métalliques dans le bain en fusion sur l'un des côtés de la cuve à la hauteur ou au-dessus du bain en fusion pour que le solide pénètre dans le bain et entraîne la projection du métal en fusion dans le gaz le recouvrant de manière à former une zone de transition. Le procédé consiste en outre en l'injection d'un gaz oxygéné dans l'espace occupé par le gaz pour provoquer la postcombustion des gaz libérés par le bain dans la zone de transition.

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