EP 4353840 A1 20240417 - AGGLOMERATED ORE ASSESSING METHOD AND AGGLOMERATED ORE
Title (en)
AGGLOMERATED ORE ASSESSING METHOD AND AGGLOMERATED ORE
Title (de)
VERFAHREN ZUR BEURTEILUNG VON AGGLOMERIERTEM ERZ UND AGGLOMERIERTES ERZ
Title (fr)
PROCÉDÉ D'ÉVALUATION DE MINERAI AGGLOMÉRÉ ET MINERAI AGGLOMÉRÉ
Publication
Application
Priority
- JP 2021101337 A 20210618
- JP 2022010210 W 20220309
Abstract (en)
An agglomerated ore assessing method is provided that can assess clustering of reduced iron when it has been reduced at a high hydrogen concentration, with thermal compensation using blowing sensible heat taken into account. In this method, agglomerated ore is reduced while being subjected to a predetermined load at 1000°C to 1200°C, both inclusive, to produce a reduced aggregate; a tumble treatment is performed on the reduced aggregate using a tumble tester; cluster strength CS of the reduced aggregate calculated by Formula (1) below is measured; and a clustering property of the agglomerated ore is assessed using the cluster strength CS: CS = (W'/W) × 100 ··· (1), where CS is cluster strength (mass%); W is the mass (g) of a reduced aggregate that is equal to or larger than a maximum particle diameter of the agglomerated ore; and W' is the mass (g) of a reduced aggregate after a tumble treatment in the tumble tester that is equal to or larger than the maximum particle diameter of the agglomerated ore.
IPC 8 full level
C21B 13/02 (2006.01); C22B 1/16 (2006.01)
CPC (source: EP US)
C21B 5/008 (2013.01 - EP); C21B 13/0073 (2013.01 - EP US); C21B 13/02 (2013.01 - EP US); C22B 1/00 (2013.01 - EP); C22B 1/16 (2013.01 - EP); C22B 1/16 (2013.01 - US)
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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4353840 A1 20240417; AU 2022294395 A1 20240118; BR 112023026307 A2 20240305; CA 3222719 A1 20221222; CN 117480268 A 20240130; JP 7111284 B1 20220802; JP WO2022264549 A1 20221222; US 2024287631 A1 20240829
DOCDB simple family (application)
EP 22824549 A 20220309; AU 2022294395 A 20220309; BR 112023026307 A 20220309; CA 3222719 A 20220309; CN 202280042099 A 20220309; JP 2022532023 A 20220309; US 202218571325 A 20220309