Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1978-12-19
1979-12-11
Andrews, M. J.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
C22B 1500
Patent
active
041781740
ABSTRACT:
The invention disclosed is a process for the direct production of copper metal by directing an aqueous slurry of cupriferous material into a molten cupriferous bath maintained at a temperature of 2100.degree. to 2400.degree. F. Neither the cupriferous material of the slurry nor that of the bath contains sufficient sulfidic materials to maintain the bath temperature by oxidation of these sulfides, so a carbonaceous fuel is incorporated in the slurry. Such fuel-containing slurry together with an oxygen-containing gas is directed at high velocity against the bath surface at an angle of about 20.degree. to 40.degree. from the horizontal. The incorporation of fuel in the injected slurry provides a heat source for the maintenance of the 2100.degree. to 2400.degree. temperature necessary for smelting the cupriferous material of the slurry.
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Andrews M. J.
The Anaconda Company
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