C - Chemistry – Metallurgy – 21 – C
Patent
C - Chemistry, Metallurgy
21
C
39/105
C21C 5/46 (2006.01)
Patent
CA 1042207
Abstract of the Disclosure A lancing system for introducing heat and process oxygen into a pyrometallurgical furnace comprising a lance of nested pipes, a lance tip of special design on one end of the lance, means to introduce high pressure process oxygen, low pressure combustion oxygen, air and natural gas to the other end of the lance and gas control means to pro- vide at least 10% of the oxygen needed for combustion as pure oxygen.
218860
Dravo Corporation
Inco Limited
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