C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 1/10 (2006.01) B01J 8/32 (2006.01) B22F 9/22 (2006.01) C21B 13/00 (2006.01) C21B 13/14 (2006.01) C22B 5/14 (2006.01) C22B 34/30 (2006.01) C22B 34/32 (2006.01)
Patent
CA 2047188
2047188 9015162 PCTABS00002 The specification discloses a process for pre-heating and pre-reducing metal oxide ores. The process comprises introducing particles of an oxide ore entrained in a gas through a port into a treatment chamber. Inside the treatment chamber the stream of entrained particles combines with a stream of high temperature reducing gas in such a way that the particles are heated rapidly and enter into flow patterns whereby contact with other particles and the internal surface of the treatment chamber is minimized. The stream of entrained particles and the stream of high temperature reducing gas are substantially co-current. A treatment chamber elongated in the direction of co-current flow is described in the specification. The hot off-gases may be derived from a molten bath reactor and comprise a high concentration of carbon monoxide and hydrogen.
Batterham Robin John
Grant Roderick Mcpherson
Happ James Vincent
Thiele Glenn Ashley
Cra Services Limited
Swabey Ogilvy Renault
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