Valorization From Waste: Combined Reduction of Chromite Ore Processing Tailing and Sub-Grade Manganese Ore to Produce 200 Series Stainless Steel Scrap

Chromite ore processing tailings and low-grade manganese ores are typically considered waste due to their limited or negligible utility, leading to environmental and storage concerns. Researchers globally have explored various methods to utilize or upgrade these wastes, particularly because dumping chromite ore has been linked to severe health issues through Cr(VI) leaching. Individually, these ores lack economic value, and there has not been research on simultaneously reducing both low-grade ores.