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. 27, 2009
Filed:
May. 20, 2005
Andreas Orth, Friedrichsdorf, DE;
Heinz Eichberger, Bad Soden, DE;
Donald Keith Philp, Bibra Lake, AU;
Jeantine Van Gemund, Legal Representative, Bibra Lake, AU;
Rod Dry, City Beach, AU;
Andreas Orth, Friedrichsdorf, DE;
Heinz Eichberger, Bad Soden, DE;
Donald Keith Philp, Bibra Lake, AU;
Jeantine Van Gemund, legal representative, Bibra Lake, AU;
Rod Dry, City Beach, AU;
Outotec Oyj, Espoo, FI;
Abstract
A direct reduction process for a metalliferous material includes supplying a solid carbonaceous material and an oxygen-containing gas into a fluidized bed in a first vessel and generating heat by reactions between the oxygen-containing gas and the solid carbonaceous material and any other oxidizable solids and gases in the fluidized bed and discharging a hot off-gas stream containing entrained solids. The process also includes supplying the metalliferous material to a fluidized bed in a second vessel and supplying the hot off-gas stream containing entrained solids from the first vessel to the fluidized bed in the second vessel and partially reducing the metalliferous feed material in the solid state in the fluidized bed and discharging a product stream of partially reduced metalliferous material and an off-gas stream containing entrained solids.