EP 1529121 A1 20050511 - PROCESS AND APPARATUS FOR THE DIRECT REDUCTION OF IRON OXIDES IN AN ELECTROTHERMAL FLUIDIZED BED AND RESULANT PRODUCT
Title (en)
PROCESS AND APPARATUS FOR THE DIRECT REDUCTION OF IRON OXIDES IN AN ELECTROTHERMAL FLUIDIZED BED AND RESULANT PRODUCT
Title (de)
VERFAHREN UND VORRICHTUNG ZUR DIREKTREDUKTION VON EISENOXIDEN IN EINEM ELEKTROTHERMISCHEN WIRBELBETT UND DARAUS RESULTIERENDES PRODUKT
Title (fr)
PROCEDE ET APPAREIL DE REDUCTION DIRECTE D'OXYDES DE FER DANS UN LIT FLUIDISE ELECTROTHERMIQUE ET PRODUIT RESULTANT
Publication
Application
Priority
- US 0308347 W 20030319
- US 36567602 P 20020319
Abstract (en)
[origin: WO03080874A1] A method and an apparatus (50) for producing direct reduced iron (37) from dry pellets (25) composed of iron oxide and carbonaceous material. A mixture of pellets (25) and free coke particles (38) with weight relation from 3:1 to 5:1 is fed into the top of an electrothermal fluidized bed (32) that is fluidized by nitrogen. By exposing pellets (25) in the electrothermal fluidized bed (32)to temperatures of between approximately 850-1,100°C for an average period of between approximately 15-60 minutes, the volatiles are removed and the pellets (25) metallized. Reduced pellets (37) mixed with free coke (38) are discharged from the bottom of fluidized bed (32) and cooled. The reduced iron pellets (37)are physically separated from any free coke (38) and the free coke (38) is recycled back into the fluidized bed (32).
IPC 1-7
C21B 13/12; C22B 5/14; C22B 23/00; C22B 34/22; C22B 34/32; C22B 34/36; H05B 3/60
IPC 8 full level
C21B 13/00 (2006.01); B01J 8/00 (2006.01); B01J 8/18 (2006.01); B01J 8/42 (2006.01); C21B 13/12 (2006.01); C22B 1/245 (2006.01); C22B 4/08 (2006.01); C22B 5/10 (2006.01); C22B 5/14 (2006.01); F27B 15/00 (2006.01); F27B 15/04 (2006.01); F27B 15/08 (2006.01); F27B 15/09 (2006.01); F27B 15/10 (2006.01); F27B 15/14 (2006.01); F27D 3/00 (2006.01); F27D 7/06 (2006.01); F27D 13/00 (2006.01); F27D 17/00 (2006.01); F27D 99/00 (2010.01); H05B 3/00 (2006.01); H05B 3/60 (2006.01); F27D 3/16 (2006.01); F27D 15/02 (2006.01)
CPC (source: EP US)
B01J 8/0075 (2013.01 - EP US); B01J 8/1818 (2013.01 - EP US); B01J 8/42 (2013.01 - EP US); C21B 13/0033 (2013.01 - EP US); C21B 13/0046 (2013.01 - EP US); C21B 13/12 (2013.01 - EP US); C22B 1/245 (2013.01 - EP US); C22B 4/08 (2013.01 - EP US); C22B 5/10 (2013.01 - EP US); C22B 5/14 (2013.01 - EP US); F27B 15/006 (2013.01 - EP US); F27B 15/04 (2013.01 - EP US); F27B 15/08 (2013.01 - EP US); F27B 15/09 (2013.01 - EP US); F27B 15/10 (2013.01 - EP US); F27B 15/14 (2013.01 - EP US); F27D 3/0033 (2013.01 - EP US); F27D 7/06 (2013.01 - EP US); F27D 13/00 (2013.01 - EP US); F27D 17/004 (2013.01 - EP US); F27D 99/0006 (2013.01 - EP US); H05B 3/0004 (2013.01 - EP US); H05B 3/60 (2013.01 - EP US); B01J 2208/00398 (2013.01 - EP US); B01J 2208/00557 (2013.01 - EP US); B01J 2219/00006 (2013.01 - EP US); B01J 2219/0809 (2013.01 - EP US); B01J 2219/0828 (2013.01 - EP US); B01J 2219/083 (2013.01 - EP US); B01J 2219/0879 (2013.01 - EP US); B01J 2219/1946 (2013.01 - EP US); F27D 15/02 (2013.01 - EP US); F27D 2003/166 (2013.01 - EP US); F27D 2099/0025 (2013.01 - EP US); Y02P 10/134 (2015.11 - EP US); Y02P 10/20 (2015.11 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 03080874 A1 20031002; AU 2003230680 A1 20031008; EP 1529121 A1 20050511; EP 1529121 A4 20070307; US 2005092130 A1 20050505
DOCDB simple family (application)
US 0308347 W 20030319; AU 2003230680 A 20030319; EP 03723770 A 20030319; US 50676404 A 20041227