Patent ID: 6083296
Filing Date: 2000-07-04
Classification: C21B,C21C,F27B,F27D,Y02P

Abstract:
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 being characterized by the steps of:i. injecting a solid material being solid carbonaceous material and/or metal oxides with a carrier gas through one or more tuyeres, wherein each tuyere injecting solid material within the vessel extends through the sidewall and is angled downwardly, and the injected solid material has sufficient momentum so that the solid carbonaceous material and/or metal oxides and the carrier gas penetrate the molten bath and cause molten metal to be projected into a space above the surface of the molten bath to form a transition zone; andii. injecting an oxygen-containing gas into the space above the molten bath surface to afterburn reaction gases released from the molten bath into the transition zone.