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.

Date of Patent:
Aug. 05, 2025

Filed:

Feb. 07, 2024
Applicant:

S.a. Lhoist Recherche ET Developpement, Ottignies-Louvain-la-Neuve, BE;

Inventors:

Eric Perrin, Paris, FR;

Souliyann Chunlamani, Brussels, BE;

Assignee:

S.A. LHOIST RECHERCHE ET DEVELOPPEMENT, Ottignies-Louvain-la-Neuve, BE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C21C 7/064 (2006.01);
U.S. Cl.
CPC ...
C21C 7/0645 (2013.01);
Abstract

A slag conditioning agent for steel desulfurization is shown which is made by a process in which a dried slag material obtained from a secondary steelmaking process is mixed with quicklime particles. The quicklime particles react with moisture in the slag material to dry the slag material and produce a blend of slag material, hydrated lime and any unreacted quicklime. The blend is then sieved to separate out the hydrated lime. The retained dried fraction after sieving is then mixed with an AlOmass fraction from which the slag conditioning agent can be collected. The slag conditioning agent has an equivalent mass ratio which is between 0.55 and 1.5.


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