The scarcity of high-grade iron ore in China severely constrains the development of hydrogen metallurgical processes. Therefore, this study proposes the utilization of ordinary magnetite concentrate to produce high-grade magnetite.
Mineralogy was employed as a predictive and practical tool to gain a deeper understanding of the properties of the ordinary iron ore concentrate. Subsequently, a combined process was implemented to achieve an ultra-pure iron concentrate. The key findings are summarized as follows: 1.
This study was performed to investigate the mechanism of the effect of the morphology of magnetite concentrate on the induration process and its effect on the quality of indurated pellets. For this purpose, magnetite concentrate was ground by two different methods of BM and HPGR.
The magnetite concentrate produced from magnetization roasting of BHQ iron ore followed by low-intensity magnetic separation has proven to be the promising technique and could act as an alternative to the conventional pelletization process.
It is shown that magnetic susceptibility of the concentrates gradually reduces with the decreasing size of magnetite particles in the material (<50~mu) m and assumes the minimal …
The separation technology provides for production of iron ore concentrate with total iron content of 65.9% and recovers 91.0% of magnetite and 80.5% of hematite from the tailings containing …
The separation technology provides for production of iron ore concentrate with total iron content of 65.9% and recovers 91.0% of magnetite and 80.5% of hematite from the tailings containing 20.4% of total iron.
Magnetite ores occur in large bodies in almost all countries, and on account of the high iron tenor of the pure mineral, and the ease with which it is concentrated, its treatment …
Magnetite ores occur in large bodies in almost all countries, and on account of the high iron tenor of the pure mineral, and the ease with which it is concentrated, its treatment forms one of the most important fields of magnetic separation.
Generally, the iron content of magnetite ore mined is 30%~60%, which is mainly used for iron making. Magnetite must be upgraded through the ore treatment process to produce high-grade concentrates for steelmaking.
Under optimized conditions, a high grade concentrate containing 66.84% iron with iron recovery of 91.16% was achieved. The XRD, VSM, and optical microscopy (OM) analyses revealed that most of...
iron ore used in the pelletizing plant was carried out in the fourth line of the Gol-e-Gohar Complex. Two methods were examined for desulfurization process using reverse floatation: 1) grinding the produced concentrate by low intensity magnetic separators (Final concentrate of plant) and flotation of the sulfur content from it; 2) grinding
The magnetite concentrate produced from magnetization roasting of BHQ iron ore followed by low-intensity magnetic separation has proven to be the promising technique and …
iron ore used in the pelletizing plant was carried out in the fourth line of the Gol-e-Gohar Complex. Two methods were examined for desulfurization process using reverse floatation: 1) grinding …
Under optimized conditions, a high grade concentrate containing 66.84% iron with iron recovery of 91.16% was achieved. The XRD, VSM, and optical microscopy (OM) analyses revealed that most of...
This study was performed to investigate the mechanism of the effect of the morphology of magnetite concentrate on the induration process and its effect on the quality of …
It is shown that magnetic susceptibility of the concentrates gradually reduces with the decreasing size of magnetite particles in the material (<50~mu) m and assumes the minimal values in the sieve residue (<8~mu) m. Wet magnetic separation is the main beneficiation process at iron ore enterprises in Russia and abroad.
Magnetite is an iron oxide ore, which belongs to the equiaxed crystal system, and its chemical formula is Fe3O4. The Mohs hardness of magnetite is 5.5~6.5. Like hematite, it has strong magnetism. In ancient times, it was also called a magnet. Magnetite is often formed in igneous, metamorphic, or granitic pegmatites, high-t…
