초록 ▼

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 characterized by injecting a carrier gas and a solid carbonaceous material and/or metal oxides into t

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 characterized 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 characterized by injecting an oxygen-containing gas into the gas space to post-combust reaction gases released from the molten bath into the transition zone.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method of producing metals and metal alloys from metal oxides in a metallurgical vessel containing a molten bath, said vessel comprising a sidewall and a roof, the molten bath comprising a metal layer and a slag layer on the metal layer, the method comprising:(i) inje

[ What is claimed is:] [1.]1. A method of producing metals and metal alloys from metal oxides in a metallurgical vessel containing a molten bath, said vessel comprising a sidewall and a roof, the molten bath comprising a metal layer and a slag layer on the metal layer, the method comprising:(i) injecting a solid material being solid carbonaceous material an/or metal oxides with a carrier gas through one or more than one tuyere into the molten bath, wherein each tuyere injecting solid material is angled downwardly and the injected solid material has sufficient momentum so that the solid material and the carrier gas penetrates the metal layer of the molten bath and causes a molten material being molten metal and/or slag to be projected into a space above the surface of the molten bath to form a transition zone; and(ii) injecting an oxygen-containing gas into the space above the molten bath surface to afterburning reaction gases released from the molten bath into the transition zone; and wherein step (i) comprises injecting the solid material and the carrier gas into the molten bath through one or more than one tuyere that is angled downwardly and has an outlet end that is submerged in the molten bath.