PHYSICOCHEMICAL STUDY OF PRESENCE OF FE2+ ION IN PYROCONSOLIDATED MAGNETITE PELLETS

Authors
FERREIRA S SIGUIN D GARCIA F
Citation
S. Ferreira et al., PHYSICOCHEMICAL STUDY OF PRESENCE OF FE2+ ION IN PYROCONSOLIDATED MAGNETITE PELLETS, Ironmaking & steelmaking, 20(6), 1993, pp. 482-484
Citations number
16
Categorie Soggetti
Metallurgy & Mining
Journal title
Ironmaking & steelmaking → ACNP
ISSN journal
03019233
Volume
20
Issue
6
Year of publication
1993
Pages
482 - 484
Database
ISI
SICI code
0301-9233(1993)20:6<482:PSOPOF>2.0.ZU;2-H
Abstract
During the pyroconsolidation of magnetite pellets, the mineral is almo st fully oxidised in the early stages of the process. However, if the heating temperature is increased, then the hematite thus obtained redi ssociates into magnetite. The temperature at which this phenomenon occ urs is dependent on the pellet composition and is significantly lower than the thermodynamic temperature corresponding to pure magnetite. Th is temperature depression is accounted for in physicochemical terms in this work.