C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 5/06 (2006.01) C21B 3/04 (2006.01) C21B 13/00 (2006.01)
Patent
CA 2228154
Disclosed is a process for producing pig iron alloys and at least one member selected from the croup consisting of pozzolanes, synthetic blast furnace slaps, belite and alite clinkers from oxidic liquid slag, the process comprising reducing the oxidic liquid slag above an iron bath in a reactor containing submerged tuyeres, while blowing carbon through the submerged tuyeres and into the iron bath to maintain the iron bath at a carbon content of between 2.5 wt% and 4.6 wt%. Also disclosed is an apparatus for producing pig iron alloys and at least one member selected from the group consisting of pozzolanes, synthetic blast furnace slaps, belite and alite clinkers from oxidic liquid slag positioned above an iron bath, the apparatus comprising a bottom-blowing converter comprising submerged tuyeres for blowing carbon into the iron bath, the bottom-blowing converter having a tapering base region which receives the iron bath and a height corresponding to that of the iron bath. The apparatus also comprises at least one foam-detecting probe for detecting formation of foam in the bottom-blowing converter and for determining at least one factor selected from the group consisting of the concentration of carbon within the iron bath, the temperature of the oxidic liquid slag, and the temperature of a gas space within the bottom-blowing converter and generating signals based on the factor. A control circuit is provided for receiving the signals and controlling an amount of carbon in the iron bath to maintain the carbon content between 2.5 wt% and 4.6 wt%.
L'invention concerne un procédé de production de pozzolanes, de laitiers synthétiques de haut fourneau, de clinkers de bélite ou d'alite, et d'alliages de fonte brute, à partir de laitiers oxydiques, selon lequel les laitiers liquides oxydés sont réduits sur un bain de fer, du carbone étant injecté dans le bain de fer au moyen de buses, de façon à maintenir une teneur en carbone comprise entre 2,5 % et 4,6 % en poids.
"holderbank" Financiere Glarus Ag
Holcim Technology Ltd.
Marks & Clerk
LandOfFree
Processing of oxidic slags does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Processing of oxidic slags, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Processing of oxidic slags will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1964434