We are consistently working on the further expansion and diversification of the ecosystem and in doing so we are making a strategic investment in the metals sector.
Red mud is a hazardous solid etching waste produced during the decomposition of bauxite ore with sodium hydroxide in the Bayer process for the production of alumina.

More than 85 million tons of red mud from former metallurgical activities have been dumped in various countries. These dumps contain considerable amounts of heavy minerals containing electrical and electronic aluminum. The main objective of the proposal is to create a self-sustaining network of actors in the aluminium value chain, including potential users of mined heavy metal concentrates and potential users of recycling residues in the construction sector, in order to define and optimise the waste-free recovery of precious metals from red sludge residues.

The proposed project will evaluate the existing best available technology for gravitational and magnetic separation and use it for the extraction of heavy metals from red sludge.Further information on our projects can be found on our website: www.swissblockgeno.ch