REUTILIZATION OF RAFFINATE FOR THE BENEFICATION OF SILICEOUS MANGANESE ORE

Siliceous manganese ores are the manganese ore which contain low percent of Mn, SiO₂ and Fe. Due to widespread application of manganese in the world, it is necessary to increase the production of manganese. In this work, waste acid and Raffinate are mainly used for the beneficiation process of siliceous manganese ore hydrometallurgical. The acid leaching ores performed using different solvents such as 2M HCl, waste acid and Raffinate with different ratios at 95^oC for two hours. The leached residues and filtrate are investigated with characterisation techniques. All the studies were compared with analytical grade HCl. It revealed the secondary leaching of manganese in pure acids over waste acid. Additive or catalytic activities may increase the rate of liberation of manganese. The beneficiation of siliceous manganese ore presents significant challenges due to the high silica content, which reduces the efficiency of conventional processing methods. At the same time, hydrometallurgical processes used in metal extraction generate large volumes of raffinate, a waste solution that is often acidic or alkaline and contains residual metal ions. Disposing of this raffinate poses serious environmental concerns and contributes to increased treatment costs. Hence, this study is necessary to evaluate the feasibility, effectiveness, and environmental impact of raffinate reutilization in manganese ore processing, offering a more sustainable and economical approach for the industry.