Method of melting slag

Details Method of melting slag Method of melting slag

1977-03-09

1978-02-14

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 11, 75 12, C22B 400, C21C 552

Patent

active

040736407

ABSTRACT:
Slag which is not electrically conductive when solid or at least at temperatures below 1500.degree. F. is melted by providing a graphite covering on top of the solid slag, contacting the covering material with at least two electrodes in spaced apart relationship, and supplying electric power to the electrodes to cause the graphite to sublime and set a plasma arc of carbon dioxide between the electrodes with resulting initial melting of the slag adjacent the electrodes. This melted slag then provides a conductive electrical path between the electrodes for continued melting of the slag.

REFERENCES:
patent: 3234608 (1966-02-01), Peras
patent: 3276859 (1966-10-01), Collin

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