EP 0046145 B1 19841219 - PROCESS AND APPARATUS FOR THE DIRECT REDUCTION OF OXIDIC FERRIFEROUS MATERIALS
Title (en)
PROCESS AND APPARATUS FOR THE DIRECT REDUCTION OF OXIDIC FERRIFEROUS MATERIALS
Publication
Application
Priority
AT 410180 A 19800808
Abstract (en)
[origin: EP0046145A1] 1. Process for the direct reduction of iron sources, in particular iron ores, within a shaft-like muffle furnace (1) comprising combustion chambers (3, 4) surrounding the muffle furnace, in which the iron source is charged, together with lumpy reducing agents and optionally additives, in lumpy form and having a grain size of more than 5 mm, the reaction gases from the muffle furnace (1) are, with their sensible heat, immediately supplied into the combustion chamber(s) (3, 4) surrounding the muffle furnace, characterized in that the muffle furnace (1) is closed in a gas-tight manner and the reaction gases are passed immediately into the combustion chamber(s) (3, 4) through openings (21, 22) in the wall of the muffle furnace (1).
IPC 1-7
IPC 8 full level
C21B 13/02 (2006.01); C21B 13/04 (2006.01); F27B 1/08 (2006.01); F27B 5/00 (2006.01)
CPC (source: EP)
C21B 13/04 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT SE
DOCDB simple family (publication)
EP 0046145 A1 19820217; EP 0046145 B1 19841219; AT 367798 B 19820726; AT A410180 A 19811215; DD 201809 A5 19830810; DE 3167823 D1 19850131; JP S5760002 A 19820410; JP S6021204 B2 19850525
DOCDB simple family (application)
EP 81890126 A 19810721; AT 410180 A 19800808; DD 23244481 A 19810806; DE 3167823 T 19810721; JP 12251681 A 19810806