EP 2578703 A1 20130410 - GRANULAR METAL PRODUCTION METHOD
Title (en)
GRANULAR METAL PRODUCTION METHOD
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES FEINKÖRNIGEN METALLS
Title (fr)
PROCÉDÉ DE PRODUCTION D'UN MÉTAL GRANULAIRE
Publication
Application
Priority
- JP 2010130124 A 20100607
- JP 2011062847 W 20110603
Abstract (en)
The present invention is to provide a technique that further improves the process for producing granular metal by heating agglomerates containing a metal oxide and a carbonaceous reducing agent, and reducing and melting the metal oxide included in the agglomerates. The process for producing granular metal comprising the steps of: feeding agglomerates containing a metal oxide and a carbonaceous reducing agent onto a hearth of a moving hearth-type reduction melting furnace; heating the agglomerates to reduce and to melt the metal oxide; cooling the granular metal obtained by said heating step; and discharging the cooled granular metal out of the furnace to recover the same, wherein the agglomerates having an average diameter of not smaller than 17.5 mm are fed onto the hearth when the agglomerates are heated at a spread density of not lower than 0.5 on the hearth.
IPC 8 full level
C21B 13/10 (2006.01); C21B 11/08 (2006.01); C22B 1/16 (2006.01); C22B 1/248 (2006.01)
CPC (source: EP KR US)
B22F 9/20 (2013.01 - US); C21B 11/08 (2013.01 - KR); C21B 13/0046 (2013.01 - EP US); C21B 13/10 (2013.01 - KR); C21B 13/105 (2013.01 - EP US); C22B 1/16 (2013.01 - KR); C22B 1/245 (2013.01 - EP US); C22B 1/248 (2013.01 - KR); C22B 5/10 (2013.01 - EP US)
Citation (search report)
See references of WO 2011155417A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2578703 A1 20130410; AU 2011262982 A1 20130110; AU 2011262982 B2 20140220; CA 2799548 A1 20111215; CL 2012003380 A1 20130524; CN 102933727 A 20130213; CN 102933727 B 20141224; JP 2011256414 A 20111222; JP 5503420 B2 20140528; KR 20130010021 A 20130124; MX 2012014337 A 20130409; NZ 603956 A 20140228; RU 2012157181 A 20140720; RU 2544979 C2 20150320; TW 201211264 A 20120316; UA 105971 C2 20140710; US 2013074654 A1 20130328; WO 2011155417 A1 20111215
DOCDB simple family (application)
EP 11792374 A 20110603; AU 2011262982 A 20110603; CA 2799548 A 20110603; CL 2012003380 A 20121130; CN 201180028157 A 20110603; JP 2010130124 A 20100607; JP 2011062847 W 20110603; KR 20127031990 A 20110603; MX 2012014337 A 20110603; NZ 60395611 A 20110603; RU 2012157181 A 20110603; TW 100118593 A 20110527; UA A201300242 A 20110603; US 201113702409 A 20110603