Method of treating dust exhausted from melting furnace
US6083294A · kind A · utility
3Cited by
8References
7Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 16, 1997 |
| Grant date | Jul 4, 2000 |
| Priority date | — |
| Expiry date | Jul 16, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.