EP 0766747 A1 19970409 - DIRECT REDUCTION PROCESS FOR IRON OXIDE-CONTAINING MATERIALS
Title (en)
DIRECT REDUCTION PROCESS FOR IRON OXIDE-CONTAINING MATERIALS
Title (de)
VERFAHREN ZUR DIREKTREDUKTION VON EISENOXIDHÄLTIGEM MATERIAL
Title (fr)
PROCEDE DE REDUCTION DIRECTE DE MATERIAUX CONTENANT DE L'OXYDE DE FER
Publication
Application
Priority
- AT 9500121 W 19950620
- AT 124894 A 19940623
Abstract (en)
[origin: WO9600302A1] A direct reduction process is disclosed for iron oxide-containing materials. Synthesis gas is mixed with top gas produced during direct reduction of the iron oxide-containing materials and is used as reduction gas for directly reducing and heating the iron oxide-containing materials up to reduction temperature. In order to set the H2S content at a predetermined value by a relatively simple technique and with a relatively simple equipment, at least part of the sulphur contained in the iron oxide-containing materials as H2S produced during heating or direct reduction is added to the reduction gas together with the top gas.
IPC 1-7
IPC 8 full level
C21B 13/00 (2006.01)
CPC (source: EP US)
C21B 13/0073 (2013.01 - EP US); C21B 2100/22 (2017.04 - EP); C21B 2100/282 (2017.04 - EP); C21B 2100/60 (2017.04 - EP); Y02P 10/122 (2015.11 - EP US); Y02P 10/134 (2015.11 - EP US); Y02P 10/143 (2015.11 - EP US)
Citation (search report)
See references of WO 9600302A1
Designated contracting state (EPC)
BE DE FR GB IT LU NL SE
DOCDB simple family (publication)
WO 9600302 A1 19960104; AT 402825 B 19970925; AT A124894 A 19970115; AU 2556895 A 19960119; AU 691293 B2 19980514; BR 9508108 A 19970812; CA 2193855 A1 19960104; CA 2193855 C 20010918; EP 0766747 A1 19970409; JP 3248915 B2 20020121; JP H10505634 A 19980602; KR 100240811 B1 20000115; MX 9606728 A 19970430; PE 49695 A1 19960122; RU 2125098 C1 19990120; UA 27080 C2 20000228; US 5871560 A 19990216; ZA 955177 B 19960131
DOCDB simple family (application)
AT 9500121 W 19950620; AT 124894 A 19940623; AU 2556895 A 19950620; BR 9508108 A 19950620; CA 2193855 A 19950620; EP 95919926 A 19950620; JP 50263096 A 19950620; KR 19960707371 A 19961223; MX 9606728 A 19950620; PE 27137695 A 19950615; RU 97101124 A 19950620; UA 96124793 A 19950620; US 76534297 A 19970115; ZA 955177 A 19950622