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:
Jul. 02, 2019
Filed:
Jan. 27, 2015
Applicant:
Primetals Technologies Austria Gmbh, Linz, AT;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27D 3/00 (2006.01); F27D 3/18 (2006.01); F27D 7/02 (2006.01); F27D 7/06 (2006.01); C21B 13/00 (2006.01); F27B 15/08 (2006.01); F27B 15/10 (2006.01); F27B 15/14 (2006.01); F27B 15/16 (2006.01); F27D 17/00 (2006.01);
U.S. Cl.
CPC ...
C21B 13/0033 (2013.01); C21B 13/006 (2013.01); C21B 13/0073 (2013.01); F27B 15/08 (2013.01); F27B 15/10 (2013.01); F27B 15/14 (2013.01); F27B 15/16 (2013.01); F27D 3/0033 (2013.01); F27D 3/18 (2013.01); F27D 7/02 (2013.01); F27D 7/06 (2013.01); F27D 17/001 (2013.01); F27D 17/008 (2013.01); C21B 2100/282 (2017.05); C21B 2100/64 (2017.05); C21B 2100/66 (2017.05); F27D 2003/185 (2013.01); F27D 2007/063 (2013.01); F27M 2001/02 (2013.01); F27M 2002/11 (2013.01); F27M 2003/165 (2013.01); Y02P 10/122 (2015.11); Y02P 10/126 (2015.11); Y02P 10/136 (2015.11); Y02P 10/212 (2015.11);
Abstract
A method for reducing metal oxide containing charge materials (): reducing the metal oxide containing charge materials () in at least two fluidized bed units (RA,RE) by means of a reduction gas (), wherein at least some of the resulting off-gas () is recycled and wherein the metal oxide containing charge materials () are conveyed into the fluidized bed unit RE by a propellant gas. Also, apparatus for carrying out the method according to the invention is disclosed.