Fluidization Dynamics in the Beneficiation of Low-Grade Banded Magnetite Quartzite Iron Ore: Experimental Insights

Abstract

This study investigates the beneficiation of low-grade Banded Magnetite Quartzite ore from Southern Indian belt, utilizing liquid-solid fluidization techniques. The research focuses on evaluating the performance of the separation process by analyzing the effects of various operational parameters, including feed size, bed height, overflow tap height, and superficial velocity, on the grade and recovery of concentrates. A comprehensive hydrodynamic analysis was conducted to determine key parameters such as pressure drop and minimum fluidization velocity, which are critical for optimizing the fluidization process. The ore was characterized through chemical analysis and mineralogical studies, revealing a composition of 33.21% Fe and significant amounts of SiO2% and Al2O3%. Experimental results demonstrated that the efficacy of the beneficiation process is significantly influenced by the size and density distribution of feed particles. The findings provide valuable insights into the operational conditions necessary for enhancing the grade of concentrates, contributing to more effective fluidization technique strategy. This work underscores the importance of understanding fluidization dynamics in the optimization of valuables recovery process from low-grade BMQ iron ore.