Method of treating dust exhausted from melting furnace

Details Method of treating dust exhausted from melting furnace Method of treating dust exhausted from melting furnace

1997-07-16

2000-07-04

Willis, Prince

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75369, 75659, 75694, C21B 1110, C22B 1904, C22B 1300

Patent

active

060832940

ABSTRACT:
A method of treating dust exhausted from a melting furnace in melting an iron-contained material, comprising the steps of: melting the iron-contained material, with air inside the melting furnace shut out from outside air and collecting the dust from the melting furnace into which a gas exhausted from the melting furnace and containing the dust is introduced; performing a lead-collecting process of collecting water, chloride, fluorine, and lead by heating the exhausted dust in vacuum; and performing a zinc-collecting process of collecting metallic zinc contained in the dust by heating a residue of the exhausted dust in vacuum.

REFERENCES:
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patent: 4673431 (1987-06-01), Bricmont
patent: 5004496 (1991-04-01), Aune et al.
patent: 5364447 (1994-11-01), Philipp et al.
Lide, David R., ed. CRC Handbook of Chemistry and Physics 79th ed. 1998 p. 9-74.

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