Hydrogen Plasma - based Extraction of High - Purity Iron from Red Mud Drives Green Metallurgy

European scientists have developed a new method that uses hydrogen plasma to reduce iron oxide in red mud, capable of producing liquid iron with a purity of over 95% in just a few minutes. This process contains almost no harmful elements and is suitable for steel - making. Meanwhile, it can consume red mud, an industrial solid waste, and is expected to solve the environmental problem of 180 million tons of red mud produced annually.