EP 0855448 A1 19980729 - Operation of lead/zinc blast furnaces
Title (en)
Operation of lead/zinc blast furnaces
Title (de)
Verfahren zum Betrieb von Blei-Zink-Schachtöfen
Title (fr)
Méthode de conduite d'un four à cuve pour le traitement métallurgique des mélanges zinc-plomb
Publication
Application
Priority
GB 9701615 A 19970127
Abstract (en)
A method of operating a lead/zinc blast furnace and a new lead/zinc blast furnace are disclosed. The invention provides a method of operating a lead/zinc blast furnace (2) of the type in which air or oxygen-enriched air is introduced through tuyeres (6) into a bed of coke (4) in the furnace, and feed materials comprising mixed sinter containing oxides of lead and zinc are intermittently charged into the furnace (2), the said oxides being reduced to form lead and zinc in the liquid and gaseous phases, respectively, the method being characterised by introducing a particulate char formed of partially oxidised particulate coal into the furnace. <IMAGE>
IPC 1-7
IPC 8 full level
C22B 13/02 (2006.01); C22B 19/08 (2006.01)
CPC (source: EP)
C22B 13/02 (2013.01); C22B 19/08 (2013.01)
Citation (search report)
- [A] GB 2197343 A 19880518 - IMP SMELTING PROCESSES
- [A] PATENT ABSTRACTS OF JAPAN vol. 012, no. 365 (C - 532) 29 September 1988 (1988-09-29)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0855448 A1 19980729; GB 9701615 D0 19970319; ZA 98218 B 19980713
DOCDB simple family (application)
EP 97309939 A 19971210; GB 9701615 A 19970127; ZA 98218 A 19980112