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:
Aug. 24, 2010
Filed:
May. 20, 2005
Andreas Orth, Friedrichsdorf, DE;
Heinz Eichberger, Bad Soden, DE;
Donald Keith Philp, Bibra Lake, WA (US);
Jeantine Van Gemund, Legal Representative, Bibra Lake, WA (US);
Rod Dry, City Beach, WA (US);
Andreas Orth, Friedrichsdorf, DE;
Heinz Eichberger, Bad Soden, DE;
Donald Keith Philp, Bibra Lake, WA (US);
Jeantine Van Gemund, legal representative, Bibra Lake, WA (US);
Rod Dry, City Beach, WA (US);
Outotec Oyj, Espoo, FI;
Abstract
A direct reduction process for a solid metalliferous material having a particle size distribution that at least in part contains micron sized particles includes supplying the metalliferous material, a solid carbonaceous material, an oxygen-containing gas, and a fluidizing gas into a fluidized bed in a vessel and maintaining the fluidized bed in the vessel, at least partially reducing metalliferous material in the vessel, and discharging a product stream that comprises the partially reduced metalliferous material from the vessel. The process includes (a) establishing and maintaining a carbon-rich zone within the fluidized bed; (b) passing metalliferous material, including metallized material (which term includes partially metallized material), through the carbon-rich zone; and (c) injecting the oxygen-containing gas into the carbon-rich zone and oxidizing metallized material, solid carbonaceous material and other oxidizable solids and gases and causing controlled agglomeration of particles.