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:
Dec. 21, 1976
Filed:
Nov. 12, 1975
Applicant:
Inventor:
Peter J Koros, Pittsburgh, PA (US);
Assignee:
Jones & Laughlin Steel Corporation, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75 53 ; 75 58 ;
Abstract
Desulfurization of molten ferrous metals such as pig iron is facilitated through the injection of a particulate fluidized mixture of non-oxidizing material and magnesium-containing reactive material by in-line mixing in a conveying line and consequent sub-surface injection. The amount of the contained magnesium, injection time, and contained magnesium injection rate are controlled to maximize process efficiency.