Process for producing a foaming slag above a stainless steel melted in an electric furnace
US6228137A · kind A · utility
2Cited by
5References
10Claims
0Family size
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Key dates
| Filing date | Sep 12, 1997 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Sep 12, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S75/961
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for producing a foaming slag above a stainless steel melted in an electric furnace, in which: a powder containing at least one metal oxide and carbon in its composition is introduced into the slag, at least one oxide present in the powder is reduced by its reaction with the carbon to form in the slag bubbles composed of the metal of the metal oxide and of carbon monoxide, the bubbles present in the slag giving rise to a slag in the form of a stable foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.