Optimizing Beneficiation Techniques of Manganese Ore for Enhanced Energy Storage Solutions in Nigeria’s Green Economy (Madaka, Rafi L.G.A, Niger State).

Abstract

This study optimized the beneficiation techniques of Madaka manganese ore, located in the Rafi Local Government Area of Niger State, Nigeria, to enhance its potential as a valuable resource for energy storage solutions in the country’s green economy. The research identified manganese oxide (MnO) as the dominant compound in the ore, comprising 48.44%, which aligns with battery-grade standards. Froth flotation experiments were conducted using varying concentrations of sodium oleate (3 g/kg, 7 g/kg, and 10 g/kg), with the highest manganese grade (65.20%) achieved at 3 g/kg, coupled with a recovery rate of 99.11%. However, higher reagent dosages resulted in decreased manganese grades and recovery, with 10 g/kg achieving the lowest recovery at 90.99%. Metallurgical accounting revealed an inverse relationship between recovery and grade, emphasizing the need for a balance to optimize the beneficiation process. 3 g/kg sodium oleate is optimal as a collector for maximizing manganese recovery and grade because, at this concentration, it efficiently enhances the flotation of manganese ore while minimizing the recovery of unwanted impurities. This dosage provides a balance between maximizing the manganese concentrate's purity and minimizing reagent consumption, making it the most effective choice for improving both recovery and grade in manganese ore beneficiation, particularly for energy storage applications. The suggestion to investigate the integration of processed manganese ore from Madaka, Niger State, into renewable energy storage systems, such as flow batteries and supercapacitors, is justified by the increasing demand for high-quality manganese in the production of energy storage technologies. Manganese plays a crucial role in enhancing the performance and efficiency of these systems, making it essential for supporting Nigeria's transition to green energy. Additionally, promoting sustainable mining practices in Nigeria’s manganese industry is vital for ensuring long-term resource availability, reducing environmental impacts, and fostering local economic growth, all of which contribute to global efforts toward a greener future.