Modern Mining ›› 2024, Vol. 40 ›› Issue (02): 167-169.
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In order to improve the scientific development of different quality ore resources in Panzhi⁃
hua mining area, the relationship between raw ore iron grade and iron concentrate quality of on-site four rep⁃
resentative ore samples with different grade gradients was studied. The results show that: ①The iron grade of
the raw ore decreases, and the disseminated particle size of titanium magnetite and ilmenite becomes finer;
②The raw ore with higher Fe grade has higher TiO2 and V2O5 grade, higher harmful component S content,
lower P content. The content of other impurities CaO, MgO, Al2O3 and SiO2 shows a downward trend; ③The
raw ore with higher Fe grade has higher iron content and distribution rate in titanium magnetite, that is, the
grade of vanadium-titanium magnetite is higher and the theoretical recovery rate of iron concentrate is high⁃
er; ④For the raw ore with high Fe grade, the contents of titanium magnetite, ilmenite and sulfide ore are
high, and the content ratio of ilmenite to titanium magnetite decreases; ⑤The lower the Fe grade of the raw
ore is, the easier the ore is to grind; ⑥The raw ore with higher TFe grade has higher yield of iron concentrate,
higher TiO2 grade and S content of concentrate, which indicates that the quality of iron concentrate produced
by raw ore with lower grade is more conducive to subsequent smelting.
