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:
Nov. 13, 2018
Filed:
Dec. 16, 2014
Applicant:
Outotec (Finland) Oy, Espoo, FI;
Inventors:
Assignee:
OUTOTEC (FINLAND) OY, Espoo, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 1/20 (2006.01); C22B 9/20 (2006.01); C21C 5/00 (2006.01); C22C 1/02 (2006.01); C22C 35/00 (2006.01); C22C 27/06 (2006.01); C22C 30/00 (2006.01); C21C 5/52 (2006.01); C21C 7/00 (2006.01); C22B 9/10 (2006.01); C22C 38/38 (2006.01);
U.S. Cl.
CPC ...
C22C 35/005 (2013.01); C21C 5/5211 (2013.01); C21C 5/5229 (2013.01); C21C 7/0025 (2013.01); C22B 1/20 (2013.01); C22B 9/103 (2013.01); C22B 9/20 (2013.01); C22C 1/02 (2013.01); C22C 27/06 (2013.01); C22C 30/00 (2013.01); C22C 38/38 (2013.01);
Abstract
To produce manganese containing ferroalloy for steel production, an agglomeration mixture is produced which comprises chromite ore concentrate and manganese ore fines with a grain size smaller than 6-9 mm. The mixture is agglomerated to produce green agglomeration products, such as pellets or other types of agglomerates. The green agglomeration products are sintered in a steel belt sintering furnace to produce either sinter or sintered pellets. The sinter or sintered pellets are smelted in a submerged arc furnace to produce manganese and chromium containing ferroalloy. The ferroalloy produced by the method comprises 6.0-35 w-% manganese and 31-54 w-% chromium.