EP 2281071 A1 20110209 - PROCESS AND DEVICE FOR PRODUCING PIG IRON OR LIQUID STEEL PRECURSORS
Title (en)
PROCESS AND DEVICE FOR PRODUCING PIG IRON OR LIQUID STEEL PRECURSORS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON ROHEISEN ODER FLÜSSIGEN STAHLVORPRODUKTEN
Title (fr)
PROCÉDÉ ET ÉQUIPEMENT DE FABRICATION DE FONTE BRUTE OU D'ÉBAUCHES LIQUIDES EN ACIER
Publication
Application
Priority
- EP 2009055047 W 20090427
- AT 9202008 A 20080606
Abstract (en)
[origin: WO2009146982A1] A process is indicated for producing pig iron or liquid steel precursors in a melting unit (1), in particular a melt-down gasifier, wherein feedstocks containing iron ore and optionally additives are at least in part reduced by means of a reduction gas in at least one reduction unit (R1, R2, R3, R4). According to the invention a first fraction of the at least in part reduced feedstocks is melted in the melting unit (1) with feed of carbon sources and oxygen-containing gas with simultaneous formation of the reduction gas. The reduction gas is fed to the reduction unit (R1, R2, R3, R4) and, after passage through this, is taken off as top gas, wherein a second fraction of the at least in part reduced feedstocks is fed to a melt reduction unit (15) for reduction and melting.
IPC 8 full level
C21B 13/14 (2006.01); C21B 13/00 (2006.01)
CPC (source: EP KR US)
C21B 11/00 (2013.01 - EP US); C21B 13/00 (2013.01 - EP US); C21B 13/002 (2013.01 - EP US); C21B 13/0046 (2013.01 - EP US); C21B 13/14 (2013.01 - KR); C21B 13/143 (2013.01 - EP US); C21B 2100/282 (2017.04 - EP US); C21B 2100/44 (2017.04 - EP US); C21B 2100/66 (2017.04 - EP US); Y02P 10/134 (2015.11 - EP US)
Citation (search report)
See references of WO 2009146982A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009146982 A1 20091210; AR 072053 A1 20100804; AT 506837 A1 20091215; AT 506837 B1 20100315; AU 2009254062 A1 20091210; AU 2009254062 A2 20110127; AU 2009254062 B2 20140116; CA 2726957 A1 20091210; CL 2009001362 A1 20100604; CN 102057060 A 20110511; CN 102057060 B 20150311; EP 2281071 A1 20110209; JP 2011522126 A 20110728; KR 20110015689 A 20110216; MX 2010013382 A 20110405; RU 2010153663 A 20120720; RU 2490333 C2 20130820; TW 201002828 A 20100116; UA 102690 C2 20130812; US 2011138965 A1 20110616; US 2014042677 A1 20140213; US 8632622 B2 20140121; US 9181594 B2 20151110; ZA 201100017 B 20120328
DOCDB simple family (application)
EP 2009055047 W 20090427; AR P090102020 A 20090605; AT 9202008 A 20080606; AU 2009254062 A 20090427; CA 2726957 A 20090427; CL 2009001362 A 20090605; CN 200980121147 A 20090427; EP 09757365 A 20090427; JP 2011512050 A 20090427; KR 20117000336 A 20090427; MX 2010013382 A 20090427; RU 2010153663 A 20090427; TW 98118525 A 20090604; UA A201014634 A 20090427; US 201314036050 A 20130925; US 99641509 A 20090427; ZA 201100017 A 20110103