Vedanta signs MoU with research institutes for value-creation from bauxite residue Posted On: 2021-04-12 08:33:58 (Time Zone: Arizona, USA) Vedanta, India's largest producer of aluminium and its value-added products, has signed a memorandum of understanding (MoU) for value-creation from bauxite residue (red mud), which is a by-product generated during processing of bauxite into alumina using the Bayer process. Bauxite is the primary ore for aluminium, that undergoes an intermediate refining stage to produce alumina, which then undergoes electrolysis for producing aluminium. Abundantly available on earth's crust, mining of bauxite is one of the most inherently sustainable mining processes. Approximately three tonnes of bauxite produce one tonne of alumina, and around two tonnes of alumina are required to produce one tonne of aluminium.