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:
Oct. 05, 1976
Filed:
Jul. 22, 1974
Applicant:
Inventor:
Karl Goran Gorling, Lidingo, SW;
Assignee:
Boliden Aktiebolag, Stockholm, SW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ; C22B / ;
U.S. Cl.
CPC ...
75-3 ; 75-9 ; 75 26 ;
Abstract
A method for agglomerating finely divided iron oxide material, substantially consisting of hematite and/or magnetite, preferably enriched iron ore concentrates, and hardening the agglomerates thus formed. The fine material is agglomerated by rolling, micropelletizing or other granulating methods to a particle size distribution convenient fluidizing purposes, whereafter the material is transferred to a fluidized bed furnace in which the bed is heated by introducing gaseous or liquid fuel and gas containing free oxygen or by hot gases. The major portion of the material is then removed from the bed in an agglomerated and hardened condition.