Patent · US Active

Method for the production of a foamed slag in a metal bath

US8043402B2 · kind B2 · utility

3Cited by

2References

11Claims

0Family size

Assignee

SMS SIEMAG AG · DE

Inventors

Johann Reichel · Mülheim an der Ruhr, DE
Lutz Rose · Goldkronach, DE
Miroslav Karbowniczek · Kraków, PL

Key dates

Filing date	Jan 15, 2007
Grant date	Oct 25, 2011
Priority date	—
Expiry date	Jan 15, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/20
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method for producing a foamed slag (1) on a metal bath (2) in a metallurgical furnace (3), in which a mixture (4) containing at least one metal oxide and carbon is introduced into the furnace (3), the metal oxide is reduced by the carbon below the slag (1) that is located there, and the gases produced during the reduction process form bubbles such that the slag is foamed. In order to optimize the formation of foamed slag, the mixture (4) is delivered into the furnace (3) in such a way that a desired height (h) or a desired section of the height (h) of the layer of foamed slag (1) is generated or maintained.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.