UPGRADING LOW-GRADE IRON ORE BY MAGNETIZING ROASTING USING SAWDUST

UPGRADING LOW-GRADE IRON ORE BY MAGNETIZING ROASTING USING SAWDUST

Abstract:
Upgrading low-grade iron ore reserves has become a significant challenge for the iron and steel industry due to the increasing demand for high-quality iron ore. Magnetizing roasting, a thermal treatment process, has emerged as a promising technique to enhance the quality and recoverability of low-grade iron ore. This abstract explores the utilization of sawdust as a reducing agent in the magnetizing roasting process to upgrade low-grade iron ore.

The magnetizing roasting process involves heating iron ore fines in the presence of a reducing agent to convert the iron oxides into magnetite, a highly magnetic iron mineral. Sawdust, a biomass waste material, possesses inherent reducing properties due to its high carbon content. By utilizing sawdust as a reducing agent during magnetizing roasting, it is possible to transform low-grade iron ore into a valuable magnetic concentrate.

This abstract highlights the advantages and challenges associated with using sawdust as a reducing agent. The benefits include the abundance and low cost of sawdust, which makes it an economically viable option for upgrading low-grade iron ore. Additionally, the carbon content in sawdust facilitates the reduction of iron oxides, leading to the formation of magnetite.

However, certain challenges must be addressed to optimize the magnetizing roasting process using sawdust. These include controlling the roasting temperature, maintaining an appropriate atmosphere, and ensuring uniform contact between the sawdust and iron ore fines. Furthermore, the potential impact of impurities present in sawdust on the quality of the upgraded iron ore needs to be evaluated.

The abstract emphasizes the potential of magnetizing roasting using sawdust as a sustainable and environmentally friendly approach to upgrade low-grade iron ore. This process not only enhances the iron content but also improves the magnetic properties, making the upgraded ore suitable for various high-value applications in the iron and steel industry.

In conclusion, the utilization of sawdust as a reducing agent in magnetizing roasting shows promise for upgrading low-grade iron ore. Further research and development efforts are required to optimize the process parameters, address challenges, and assess the economic feasibility and environmental sustainability of this approach. The successful implementation of this technique could contribute to the efficient utilization of low-grade iron ore resources and reduce the dependence on high-grade ores, thereby promoting sustainable iron and steel production.

UPGRADING LOW-GRADE IRON ORE BY MAGNETIZING ROASTING USING SAWDUST. GET MORE MATERIALS SCIENCE AND ENGINEERING

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