Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1997-10-31
2000-10-24
King, Roy V.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 1038, 75 1046, C21B 1312
Patent
active
061360597
ABSTRACT:
A process for processing electric steelworks dusts containing oxidized high-iron, zinc-bearing materials in order to recover iron and zinc from [them] said dusts. The process includes the steps of: feeding the dusts to an induction furnace partially filled with a charge of metal or alloy to be smelted, wherein the charge is present as a molten bath that is made turbulent by induced currents; contacting the dusts with a surface of the turbulent molten bath inside the furnace; and reducing zinc and iron oxides contained in the dusts inside the furnace, while oxidizing zinc and carbon monoxide rising from the bath.
REFERENCES:
patent: 3908072 (1975-09-01), Colin
patent: 4612041 (1986-09-01), Matsuoka et al.
patent: 4762554 (1988-08-01), Lazcano-Navarro
patent: 4802919 (1989-02-01), Fey
patent: 4906290 (1990-03-01), Worner
patent: 5540751 (1996-07-01), Yamamoto et al.
Zunkel, D. What to do With Your EAF Dust, Steel Times International, vol. 20, No. 4, Jul. 1996; pp. 46, 48-50.
Derwent Abstract 87-300149/43 "Treating waste material to remove toxic compounds." Limpach, R. and Metz, P, Apr. 1986.
Ecochem Aktiengesellschaft
King Roy V.
McGuthry-Banks Tima
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