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iron pellets are essentially oval lumps of iron metal which are used to produce steel. They are produced by blending iron ore fines with certain additives and then fired in a furnace. They are used for a wide range of applications such as in the construction industry, where they are used in the manufacture of bridges, buildings, and roads.
They can also be used in the mining industry to produce metal products such as iron scrap and pig iron. These materials are used to make steel products such as tubes, pipes, bearing casings, and conveyor belt rollers.
Pellets have good reducibility and they are easier to metallize, compared to sinter and iron ore lumps. Moreover, they have spherical shapes with open pores, which give them greater permeability and help in easy furnace operations.
The microstructural characterization of iron ore pellets is important to understand their properties and behavior in the agglomeration process. This can be achieved by reflected light microscopy (RLM) or digital image analysis.
X-ray diffraction analysis (XRD) is a useful technique for the quantitative phase analysis of the major mineral phases in iron ore pellets. The method can be combined with Rietveld data analysis to identify and quantify the proportion of various gangue minerals such as quartz, silica, cristobalite, tridymite, and forsterite that are present in the product.
The global iron pellets market is expected to grow at a CAGR of 3.7% from 2020 to 2027. This growth is attributed to the increase in the demand for steel products, mainly in the automotive industry. In addition, the increase in the number of electric vehicles owing to rising energy demand is projected to drive the growth of the market.