Process to eliminate hazardous components from the electric arc

Details Process to eliminate hazardous components from the electric arc Process to eliminate hazardous components from the electric arc

1986-11-10

1988-08-09

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 25, C21B 304

Patent

active

047625546

ABSTRACT:
A method and apparatus for the pyrometallurgical treatment of the environmentally hazardous steel mill flue dust or similar materials recovering the volatile metals from such materials in reduced form and converting the remaining iron into steel and slag. The distilled heavy metals are recovered as alloy by gas-expansion condensing from the top gas.
The process reduction is carried out utilizing natural gas as reductant which is bottom injected in an induction furnace in which a furnace burden is formed of green ball pellets or formed as flue dust powders and an electromagnetic induction susceptor to heat the charge.

REFERENCES:
patent: 3770416 (1973-11-01), Goksel
patent: 3945817 (1976-03-01), Yatsunami
patent: 4612041 (1986-09-01), Matsuoka

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