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:
Sep. 10, 2019
Filed:
May. 13, 2015
Applicant:
Kobe Steel, Ltd., Kobe-shi, JP;
Assignee:
Kobe Steel, Ltd., Kobe-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C21B 13/10 (2006.01); C21B 13/00 (2006.01); C21B 11/08 (2006.01); C21B 11/10 (2006.01); C21B 13/12 (2006.01); C22B 1/24 (2006.01); C22B 1/245 (2006.01);
U.S. Cl.
CPC ...
C21B 13/0053 (2013.01); C21B 11/08 (2013.01); C21B 11/10 (2013.01); C21B 13/0066 (2013.01); C21B 13/105 (2013.01); C21B 13/12 (2013.01); C22B 1/24 (2013.01); C22B 1/245 (2013.01); C21B 2300/02 (2013.01);
Abstract
This method is for producing granular metallic iron in which the relation between the mass ratio (mass %) of the volatile matter content contained in a carbonaceous reducing agent and the average gas flow rate (m/s) of the ambient gas in a heating furnace fulfills expression (1). Mass ratio of volatile matter content≤−4.62×average gas flow rate+46.7 . . . (1)