Extraction of valuable metals/compounds from Red Mud. The pilot shall be conducted for a capacity of 10 Metric Tonne.
Red mud is a major waste produced during Alumina production. Yearly production of the waste is 3 million MT per year. This brings in volume and stacking challenges.
Presently red mud is sent through a press filter at VLL location and is disposed off in a dry stacking manner. Hence, red mud poses an environmental liability.
Red mud has the following composition: Fe2O3 : 45%, Al2O3 : 20%, and other rare earth elements like
V, Ga and Ti in the range of 3-6%. Extraction of these elements would be a true form of wealth out of waste