The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 25, 2022
Filed:
Aug. 24, 2018
Voestalpine Stahl Gmbh, Linz, AT;
Herbert Schmid, Sipbachzell, AT;
voestalpine Stahl GmbH, Linz, AT;
Abstract
A method for treating converter slag for the purpose of recirculating iron, wherein a converter slag is brought into contact with oxygen in such a way that by means of turbulence, the slag is mixed, the iron and iron oxide components that are present are oxidized, and the slag is then allowed to stand in the vessel or a vessel until a segregation into a solidifying, silicate and phosphorus-rich first fraction and an underlying liquid iron oxide-rich second fraction has taken place, with the converter slag that is used being mixed with a partial flow from the iron oxide-rich second fraction in such a way that the total FeO content of the slag that is to be treated with oxygen is over 35% by weight, thus enabling the segregation into two fractions.