C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/352
C22B 5/12 (2006.01) F27D 99/00 (2010.01) C22B 9/05 (2006.01) F27B 3/22 (2006.01)
Patent
CA 1327275
ABSTRACT In the case of a method for implementing pyrometallurgical processes out of oxidic ores, con- centrates or intermediate products, and metallic intermediate products, by means of strongly reducing gases, or oxygen-containing gases, for producing and refining a bath of molten metal, the reducing gas is blown, through at least three nozzles, onto the sur- face of a charge, located in a cylindrical, axial furnace chamber, at a speed which is above 100 m/s and below 300 m/s; the gas, which is deflected at the point of impingement, and which ascends again with a high content of CO and H2, is afterburned in the cylindrical furnace chamber by air injected secan- tially into the furnace chamber.
560115
Bock Ulrich
Swabey Ogilvy Renault
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