EP 1984526 A4 20141015 - CONDITIONED QUICKLIME FOR INJECTION TO A MOLTEN BATH OF A STEEL-MAKING VESSEL
Title (en)
CONDITIONED QUICKLIME FOR INJECTION TO A MOLTEN BATH OF A STEEL-MAKING VESSEL
Title (de)
KONDITIONIERTER BRANNTKALK ZUR INJEKTION IN EIN SCHMELZFLÜSSIGES BAD EINES STAHLHERSTELLUNGSBEHÄLTERS
Title (fr)
CHAUX VIVE CONDITIONNEE POUR INJECTION DANS UN BAIN EN FUSION D'UNE CUVE DE FABRICATION DE L'ACIER
Publication
Application
Priority
US 2006004410 W 20060209
Abstract (en)
[origin: WO2007092006A1] In a method of producing steel using a steel-making vessel, where lime is used as a flux material that is blown, from above, into a steel-making bath along with an oxygen stream, providing a flux material composition of calcium oxide having a particle size of less than 250 mesh, which contains a flow aid material that is a polymeric siloxane, in an amount of less than 0.5 percent by weight of the calcium oxide, and injecting the flux material composition through a lance along with oxygen into the steel-making bath contained in the steel-making vessel .
IPC 8 full level
C21C 7/00 (2006.01); C21C 7/076 (2006.01)
CPC (source: EP US)
C21C 7/0037 (2013.01 - EP US); C21C 7/076 (2013.01 - EP US); C21C 1/025 (2013.01 - EP US); C21C 7/0645 (2013.01 - EP US); C21C 7/068 (2013.01 - EP US); Y02P 10/20 (2015.11 - EP US)
Citation (search report)
- [XI] US 4263043 A 19810421 - HAIDA OSAMU, et al
- [I] WO 0188208 A2 20011122 - WACSON INC [US], et al
- [Y] US 4208388 A 19800617 - NICHOLSON WILLIAM R [US]
- [Y] DE 1771274 A1 19720217 - RWK RHEIN WESTFAEL KALKWERKE
- [Y] US 5284504 A 19940208 - BARKER BRUCE J [CA], et al
- [Y] US 4528031 A 19850709 - HACETOGLU ARARAT [CA], et al
- [Y] US 5021086 A 19910604 - LUYDKX LEON A [US], et al
- [Y] DATABASE WPI Week 199339, Derwent World Patents Index; AN 1993-312001, XP002728912
- See references of WO 2007092006A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
BA HR YU
DOCDB simple family (publication)
WO 2007092006 A1 20070816; CA 2640471 A1 20070816; EP 1984526 A1 20081029; EP 1984526 A4 20141015; US 2009013827 A1 20090115
DOCDB simple family (application)
US 2006004410 W 20060209; CA 2640471 A 20060209; EP 06734571 A 20060209; US 58300708 A 20080721