C - Chemistry – Metallurgy – 21 – B
Patent
C - Chemistry, Metallurgy
21
B
C21B 11/00 (2006.01) C21B 13/00 (2006.01) C21C 7/00 (2006.01) F27B 1/16 (2006.01) C21C 5/46 (2006.01) C22B 5/10 (2006.01)
Patent
CA 2324782
A vessel which produces metal from a metalliferous feed material by a direct smelting process is disclosed. The vessel contains a molten bath having a metal layer (15) and a slag layer (16) on the metal layer and has a gas continuous space (31) above the slag layer. The vessel includes one or more than one lance/tuyere (13) extending downwardly into the vessel and injecting an oxygen-containing gas into the vessel above the metal and slag layer. The vessel includes a plurality of pairs of lances/tuyeres (11) extending downwardly and inwardly into the vessel and injecting feed material (such as metalliferous feed material and carbonaceous material) with a carrier gas into the molten bath so as to penetrate the metal layer and generate a bath-derived gas flow which carries molten material upwardly. The pairs of lances/tuyeres are spaced around the circumference of the vessel with one lance/tuyere of each pair injecting feed material, primarily metalliferous feed material, at a temperature of at least 200°C and the other lance/tuyere of each pair injecting feed material, primarily carbonaceous material, at a temperature less than 200°C.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Technological Resources Pty Ltd
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