EP 0627012 B1 19970730 - PROCESS FOR DESULPHURISING IRONS MELTS WITH MINIMAL SLAG PRODUCTION AND SUITABLE DEVICE THEREFOR
Title (en)
PROCESS FOR DESULPHURISING IRONS MELTS WITH MINIMAL SLAG PRODUCTION AND SUITABLE DEVICE THEREFOR
Title (de)
VERFAHREN ZUR ENTSCHWEFELUNG VON EISENSCHMELZEN BEI MINIMALEM SCHLACKE-ANFALL UND EINE DAFÜR GEEIGNETE VORRICHTUNG
Title (fr)
PROCEDE DE DESULFURATION DE BAINS DE FER EN FUSION AVEC PRODUCTION MINIMALE DE LAITIER ET DISPOSITIF APPROPRIE POUR CE PROCEDE
Publication
Application
Priority
- DE 4206091 A 19920227
- DE 9300165 W 19930225
Abstract (en)
[origin: WO9317131A1] The invention relates to a process for desulphurising irons melts with minimal slag production, and a suitable device therefor. In the process, a slag with the chemical analysis (I) and impurities arising from the raw material is taken to a temperature of 1400 to 1800 C by the resistance heating of the slag by means of electrodes immersed in the slag in a tippable low-shaft furnace or an electric or pan furnace adapted for the process of the invention and with this slag the sulphur-containing irons melt is desulphurised and either discontinuously or continuously cast beneath the desulphurising slag, and the ratio between the irons melt and the slag may not exceed 10 : 1 parts by weight and the desulphurising slag is continuously and/or discontinuously regenerated.
IPC 1-7
IPC 8 full level
C21C 1/02 (2006.01); C21C 7/064 (2006.01); F27B 3/06 (2006.01); F27B 3/08 (2006.01); F27B 3/14 (2006.01); F27B 3/19 (2006.01); F27B 3/22 (2006.01); F27D 1/00 (2006.01)
CPC (source: EP KR US)
C21C 1/02 (2013.01 - EP KR US); C21C 7/064 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE FR GB IT LU SE
DOCDB simple family (publication)
WO 9317131 A1 19930902; AT E156196 T1 19970815; CA 2130996 A1 19930828; DE 4206091 A1 19930902; DE 4206091 C2 19940922; DE 59307023 D1 19970904; EP 0627012 A1 19941207; EP 0627012 B1 19970730; JP 3902223 B2 20070404; JP H07504230 A 19950511; KR 100269897 B1 20001016; KR 950700427 A 19950116; US 5466275 A 19951114
DOCDB simple family (application)
DE 9300165 W 19930225; AT 93903828 T 19930225; CA 2130996 A 19930225; DE 4206091 A 19920227; DE 59307023 T 19930225; EP 93903828 A 19930225; JP 51445593 A 19930225; KR 19940703002 A 19940826; US 29573394 A 19940829