EP 0195770 B1 19881214 - PROCESS FOR THE PRODUCTION OF MOLTEN PIG IRON OR STEEL PRE-PRODUCTS
Title (en)
PROCESS FOR THE PRODUCTION OF MOLTEN PIG IRON OR STEEL PRE-PRODUCTS
Publication
Application
Priority
AT 84685 A 19850321
Abstract (en)
[origin: US4708736A] In a method of producing molten pig iron or steel pre-products from particulate ferrous material, as well as of producing reduction gas in a melt-down gasifier by adding coal and by blowing in oxygen-containing gas by means of nozzle pipes penetrating the wall of the melt-down gasifier, a fixed bed formed of coke particles, through which the oxygen-containing gas flows and a superposed fluidized bed of coke particles are formed, and the ferrous material is charged onto the fluidized bed. Below the fixed bed through which oxygen-containing gas flows, a fixed bed of coke particles not passed through by gas is provided, and the fluidized bed above the fixed bed passed through by oxygen-containing gas is passed through by a gas free from oxygen or having a low oxygen content.
IPC 1-7
IPC 8 full level
C21B 11/02 (2006.01); C21B 13/00 (2006.01)
CPC (source: EP KR US)
C21B 13/00 (2013.01 - KR); C21B 13/002 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0195770 A1 19860924; EP 0195770 B1 19881214; AT 382390 B 19870225; AT A84685 A 19860715; AU 5466486 A 19860925; AU 574906 B2 19880714; BR 8601242 A 19861202; CA 1268633 A 19900508; CN 86101817 A 19861105; CN 86101817 B 19880706; CS 196586 A2 19880916; CS 264273 B2 19890613; DD 247025 A5 19870624; DE 3661424 D1 19890119; IN 166414 B 19900505; JP S61221315 A 19861001; JP S648044 B2 19890213; KR 860007386 A 19861010; KR 930007308 B1 19930805; SU 1473716 A3 19890415; US 4708736 A 19871124; ZA 861922 B 19861126
DOCDB simple family (application)
EP 86890063 A 19860317; AT 84685 A 19850321; AU 5466486 A 19860312; BR 8601242 A 19860320; CA 504112 A 19860314; CN 86101817 A 19860320; CS 196586 A 19860320; DD 28804086 A 19860319; DE 3661424 T 19860317; IN 225DE1986 A 19860311; JP 6465986 A 19860320; KR 860002107 A 19860321; SU 4027155 A 19860320; US 83866986 A 19860312; ZA 861922 A 19860314