C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/361
C22B 5/12 (2006.01) C21C 5/46 (2006.01) C21C 7/00 (2006.01) C22B 9/05 (2006.01) C22B 9/10 (2006.01) F27D 3/16 (2006.01)
Patent
CA 1107080
ABSTRACT OF THE DISCLOSURE A method of injecting gas into a pyrometallurgical bath is disclosed wherein the gas is injected through a lance having an interior duct for flow of gas therethrough and a discharge end at which the gas is discharged characterized by the steps of presenting the discharge end of the lance to a molten mass of slag and forcing gas through the lance to splash-coat the discharge end of the lance with molten slag and inserting the thus coated discharge end of the lance into the pyrometallurgical bath. Also disclosed is a lance for submerged injection of gas into a liquid pyrometallurgical bath comprising a duct for flow of gas longitudinally through the lance characterized in that the outer wall of the duct is defined by an elongate tube constituting an outer wall of the lance and there is gas flow swirler means within the tube to impart swirl to gas passed through the duct.
302279
Commonwealth Scientific And Industrial Research Organization
Kirby Eades Gale Baker
LandOfFree
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