ISSN 2594-357X
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The high temperature characteristics of iron ore, such as assimilation characteristic, fluidity of liquid phase, could well reflect behaviors of iron ores during sintering process, and the mineralogical characteristic of iron ores would influence the high temperature sintering characteristics further. Taking eight kinds of iron ores from Brazil, Australia, and South Africa as the objects, the chemical composition, mineral types, particle morphology, and gangues dispersity of the selected iron ores were investigated respectively. Meanwhile the influence rules between the mineralogical characteristics and the high temperature characteristics were measured and analyzed. The results showed that the effect of SiO2 on assimilation characteristic of iron ores was relatively complex, Al2O3 and LOI of iron ores had negative correlation with assimilation temperature of iron ores, the dense slab-flaky mineral granule restrained to the assimilation characteristics of iron ores; liquid phase of iron ores with high SiO2 content and low Al2O3 content had high fluidity, and the higher dispersity of gangue minerals in iron ores was good to the fluidity of liquid phase.
The high temperature characteristics of iron ore, such as assimilation characteristic, fluidity of liquid phase, could well reflect behaviors of iron ores during sintering process, and the mineralogical characteristic of iron ores would influence the high temperature sintering characteristics further. Taking eight kinds of iron ores from Brazil, Australia, and South Africa as the objects, the chemical composition, mineral types, particle morphology, and gangues dispersity of the selected iron ores were investigated respectively. Meanwhile the influence rules between the mineralogical characteristics and the high temperature characteristics were measured and analyzed. The results showed that the effect of SiO2 on assimilation characteristic of iron ores was relatively complex, Al2O3 and LOI of iron ores had negative correlation with assimilation temperature of iron ores, the dense slab-flaky mineral granule restrained to the assimilation characteristics of iron ores; liquid phase of iron ores with high SiO2 content and low Al2O3 content had high fluidity, and the higher dispersity of gangue minerals in iron ores was good to the fluidity of liquid phase.
Palavras-chave
Iron ore; Mineralogical characteristics; Assimilation characteristics; Fluidity of liquid phase.
Iron ore; Mineralogical characteristics; Assimilation characteristics; Fluidity of liquid phase.
Como citar
Su, Bo;
Wu, Sheng-li;
Zhang, Guo-liang;
zhu, Juan;
Chen, Shao-guo;
Fan, Jia-xin.
IRON ORE ON FORMATION AND FLOW OF LIQUID PHASE
,
p. 1087-1098.
In: 43º Seminário de Redução de Minério de Ferro e Matérias-Primas e o 14º Simpósio Brasileiro de Minério de Ferro,
São Paulo,
2013.
ISSN: 2594-357X
, DOI 10.5151/2594-357X-23989
