Experimental Study of the Effect of B2O3 on Vanadium-Titanium Magnetite Concentrates Pellets

This paper aims to improve the metallurgical properties of vanadium-titanium magnetite (VTM) concentrates pellets by applying solid waste containing B2O3. Thus, the effects of adding B2O3 on the drop strength, compressive strength, pores area ratio, high-temperature metallurgical properties, and mic...

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Bibliographic Details
Published in:Journal of chemistry 2020-01, Vol.2020 (2020), p.1-11
Main Authors: Qin, Yue-lin, Liu, Weiqiang, Saxén, Henrik, Zhang, Ke, Liu, Hao, Xiang, Xiaoyan
Format: Article
Language:English
Subjects:
Boron
Boron oxides
Compressive strength
Crack propagation
Experiments
Fracture toughness
High temperature
Iron
Magnetic properties
Magnetite
Mechanical properties
Metallurgical analysis
Minerals
Morphology
Pelleting
Pellets
Reagents
Titanium
Vanadium
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Summary:This paper aims to improve the metallurgical properties of vanadium-titanium magnetite (VTM) concentrates pellets by applying solid waste containing B2O3. Thus, the effects of adding B2O3 on the drop strength, compressive strength, pores area ratio, high-temperature metallurgical properties, and microstructure of VTM pellets were studied through pelletizing and roasting experiments. Results show that the addition of B2O3 reagent is not conducive to the increase of the drop strength of the green pellets. Nevertheless, the compressive strength and fracture toughness of the roasted pellets can be improved by adding more B2O3 during the pelletizing. The reduction degree of VTM pellets is firstly decreased and then increased with the added B2O3 amount. It is possible to improve the compaction degree and restrain the reduction-pulverization degree of the pellet by a low amount of additive (B2O3). The reduction-expansion performance of VTM pellets, in turn, can be raised by adding B2O3.
ISSN:2090-9063
2090-9071
DOI:10.1155/2020/9768795