C - Chemistry – Metallurgy – 21 – B
Patent
C - Chemistry, Metallurgy
21
B
C21B 11/00 (2006.01) C21B 13/00 (2006.01) C21C 5/56 (2006.01) C22B 9/00 (2006.01) F27B 1/16 (2006.01) C22B 7/02 (2006.01)
Patent
CA 2320654
A direct smelting process and a fixed, ie non--rotatable, metallurgical vessel for producing metal from a metalliferous feed material is disclosed. The process is a molten bath-based process which includes injecting solid feed materials with a carrier gas into the molten bath via one or more downwardly extending lance/tuyere (11) and causing gas flow from the molten bath at a flow rate of at least 0.30 Nm3/s/m2 at the interface between the metal layer (15) and the slag layer (16) of the molten bath (under quiescent conditions).
La présente description concerne un procédé de fusion directe et un récipient métallurgique fixe, autrement dit non rotatif, permettant de produire du métal à partir d'un matériau de charge métallifère. Le procédé, qui est basé sur un bain en fusion, prévoit l'injection de matériaux de charge solides avec un gaz porteur dans le bain au moyen d'une ou plusieurs lances/tuyères déployées vers le bas (11) et l'écoulement du gaz à partir du bain à un débit d'au moins 0,30 Nm3/s/m2 à l'interface entre la couche de métal (15) et la couche de laitier (16) du bain de fusion (dans des conditions de quiescence).
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Technological Resources Pty. Ltd.
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