EP 2895629 A1 20150722 - METHOD FOR HEATING PROCESS GASES FOR DIRECT REDUCTION PLANTS
Title (en)
METHOD FOR HEATING PROCESS GASES FOR DIRECT REDUCTION PLANTS
Title (de)
VERFAHREN ZUM AUFHEIZEN VON PROZESSGASEN FÜR DIREKTREDUKTIONSANLAGEN
Title (fr)
PROCÉDÉ DE CHAUFFAGE DE GAZ DE PROCESS POUR INSTALLATIONS DE PRODUCTION DIRECTE
Publication
Application
Priority
- DE 102012108631 A 20120914
- DE 102012109284 A 20120928
- DE 102013104002 A 20130419
- EP 2013068743 W 20130910
Abstract (en)
[origin: WO2014040997A1] The invention relates to a method for reducing iron ore using the direct reduction method, wherein the iron ore to be reduced is conducted through a reduction unit such as a shaft furnace and brought into contact with a reduction gas, wherein the reduction gas is introduced into the reduction unit and flows through the unit and is extracted from the unit after flowing through the unit, wherein after exiting the unit the gas is refined and where necessary enriched with new reduction gas fractions and fed back, wherein the reduction gas is heated before entering the reduction unit, characterised in that the heating of the reduction gas before entering the unit takes place electrically.
IPC 8 full level
C21B 11/02 (2006.01); C21B 13/00 (2006.01); C21B 13/02 (2006.01)
CPC (source: EP US)
C01B 3/02 (2013.01 - US); C21B 13/004 (2013.01 - EP US); C21B 13/0073 (2013.01 - EP US); C21B 13/02 (2013.01 - US); C21B 13/14 (2013.01 - EP US); C22C 37/00 (2013.01 - EP US); C22C 38/00 (2013.01 - EP US); C25B 1/04 (2013.01 - EP US); C21B 13/0086 (2013.01 - EP US); Y02E 60/36 (2013.01 - EP US); Y02P 10/122 (2015.11 - EP US); Y02P 10/134 (2015.11 - EP US); Y02P 20/133 (2015.11 - EP US)
Citation (search report)
See references of WO 2014040997A1
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014040997 A1 20140320; CN 104662175 A 20150527; CN 104662176 A 20150527; CN 104662177 A 20150527; EP 2895629 A1 20150722; EP 2895630 A2 20150722; EP 2895630 B1 20230607; EP 2895631 A2 20150722; EP 2895631 B1 20180718; ES 2689779 T3 20181115; ES 2952386 T3 20231031; FI 2895630 T3 20230815; JP 2015529751 A 20151008; JP 2015532948 A 20151116; JP 2015534604 A 20151203; KR 20150053809 A 20150518; KR 20150063075 A 20150608; KR 20150065728 A 20150615; US 2015259759 A1 20150917; US 2015259760 A1 20150917; US 2015329931 A1 20151119; WO 2014040989 A2 20140320; WO 2014040989 A3 20140612; WO 2014040990 A2 20140320; WO 2014040990 A3 20140612
DOCDB simple family (application)
EP 2013068743 W 20130910; CN 201380046926 A 20130910; CN 201380047304 A 20130910; CN 201380047309 A 20130910; EP 13762102 A 20130910; EP 13763210 A 20130910; EP 13765312 A 20130910; EP 2013068726 W 20130910; EP 2013068727 W 20130910; ES 13763210 T 20130910; ES 13765312 T 20130910; FI 13763210 T 20130910; JP 2015531540 A 20130910; JP 2015531541 A 20130910; JP 2015531542 A 20130910; KR 20157009624 A 20130910; KR 20157009633 A 20130910; KR 20157009638 A 20130910; US 201314428116 A 20130910; US 201314428206 A 20130910; US 201314428280 A 20130910