EP 0653496 B1 19990310 - Process and apparatus for the recovery of valuable materials
Title (en)
Process and apparatus for the recovery of valuable materials
Title (de)
Verfahren und Vorrichtung zur Wertstoffgewinnung
Title (fr)
Procédé et appareil d'obtention de matériaux de valeur
Publication
Application
Priority
DE 4339226 A 19931115
Abstract (en)
[origin: EP0653496A1] The invention relates to a process for recovery of valuable material by reduction of oxygen-bonded metals in metallurgical vessels, and a melt furnace plant having a partition projecting into the vessel from the furnace ceiling dividing the furnace into two parts, having a device for supplying thermal (heat) energy, material feed and melt discharge apparatuses and a connection to a gas purification unit, for carrying out the process. The process is characterised according to the invention in that a solid or liquid charge in the first reaction zone is subjected to thermal energy until, in the case of a solid charge, a melt bath forms, or in the case of a liquid charge a melt bath is maintained, in which liquid slag floats on a metallic melt bath, in that the melt bath is fed to a second reaction zone in which the slag comes into intimate contact with a reducing agent, and in that thermal energy preventing solidification is additionally supplied to the melt in the reduction zone. <IMAGE>
IPC 1-7
IPC 8 full level
C21C 5/52 (2006.01); C21C 5/56 (2006.01); C22B 5/10 (2006.01); F27B 3/08 (2006.01); F27B 3/20 (2006.01)
CPC (source: EP US)
C21C 5/5252 (2013.01 - EP US); C21C 5/56 (2013.01 - EP US); C22B 5/10 (2013.01 - EP US); F27B 3/085 (2013.01 - EP US); F27B 3/205 (2013.01 - EP US)
Designated contracting state (EPC)
DE SE
DOCDB simple family (publication)
EP 0653496 A1 19950517; EP 0653496 B1 19990310; BR 9404454 A 19950620; CA 2135830 A1 19950516; CN 1037530 C 19980225; CN 1111287 A 19951108; DE 4339226 A1 19950518; DE 59407914 D1 19990415; NO 304030 B1 19981012; NO 944267 D0 19941109; NO 944267 L 19950516; US 5500870 A 19960319; ZA 949068 B 19950720
DOCDB simple family (application)
EP 94250266 A 19941101; BR 9404454 A 19941114; CA 2135830 A 19941115; CN 94118389 A 19941114; DE 4339226 A 19931115; DE 59407914 T 19941101; NO 944267 A 19941109; US 33977794 A 19941115; ZA 949068 A 19941115