Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1996-05-10
1997-12-09
Andrews, Melvyn
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75500, 75504, 75961, 75962, C21B 1110
Patent
active
056955430
ABSTRACT:
A method and system for recovering metal from steel waste products is disclosed. This method and system works on such hazardous and/or toxic wastes as mill scale, flue dust and slag. This method and system operates by mixing the steel waste produce with a flux composition and then melting the mix in a single phase two electrode electric arc furnace. Once the mixture is melted by the heat from the electrodes, the electro-magnetic field induced in the melted mixture serves to enhance the recovery from the steel waste product of useful steel material. Furthermore, this method and system provide a cost effective solution to the hazardous waste disposal problems impacting steel refineries around the world and does so in a manner that removes the toxicity of the waste while producing a variety of useful products, including high grade steel and neutralized fill.
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Andrews Melvyn
D & S Technologies, Inc.
McCarthy Daniel P.
Sadler Lloyd W.
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