[en] The current study is focused on the iron ores granulation process in a laboratory-scale batch drum granulator using water as a binder, and on the investigation of the influence of raw material properties (morphology and wettability of the primary particles) on its kinetics. Nowadays processing of iron ores often requires a modification of particle size by means of granulation in order to improve further processability. A comparison of the granulation behaviour of three types of iron ores (magnetite, hematite and goethite) has been carried out. The wettability of the powders has been characterised by contact angle measurement. The results confirm the hydrophobic and hydrophilic characters of magnetite and goethite respectively. The granulation kinetics (evolution of particle size distribution as a function of time) of each type of iron ores was measured.
van Loo, Fréderic; Centre de Recherche Métalurgique - CRM > Environment friendly metal production > CRM1
Douce, Jean-François; ArcelorMittal Ironmaking > Global R&D | Maizières Process, France
Schöngut, Marek; Institute of Chemical Technology > Department of Chemical Engineering
Evrard, Maxime ; Université de Liège - ULiège > Département ArGEnCo > Géoressources minérales & Imagerie géologique
Štěpánek, František
Pirard, Eric ; Université de Liège - ULiège > Département ArGEnCo > Géoressources minérales & Imagerie géologique
Language :
English
Title :
EFFECT OF RAW MATERIAL PROPERTIES ON THE KINETICS OF IRON ORES GRANULATION
Publication date :
26 June 2013
Number of pages :
15
Event name :
6th International Granulation Workshop
Event place :
Sheffield, United Kingdom
Event date :
from 26/-06-2013 to 28-06-2013
Audience :
International
Name of the research project :
APGRAN
Funders :
The authors would like to acknowledge financial support by Walloon Government (Grant No. 1017210-APGRAN) and support from MSMT (grant no. LH12115 MultiGRAN).
