Regain Materials products

Regain’s robust proprietary technology accepts SPL with its inherent variation in size and chemical composition, eliminates the cyanide and explosive gas hazards and refines the material to manufacture high quality products. Regain takes SPL as it is delined from the reduction cells (pots) and processes it at the smelter site through a low capital cost detoxification system that eliminates the hazards in the SPL. The process addresses the extreme variability in chemical composition of SPL by refining the material to make a quality-controlled product that is tuned to the customer’s needs. This process has been proven since 2002 with more than 250,000 tonnes of SPL transformed by Regain.

Bauxite ore is converted to alumina, then an electrolysis process converts alumina into metal in a carbon-lined container. Rows of these "pots" connected in series form a "potline" which can be more than a kilometer long. In 1886, Charles Hall of the USA and Paul L.T. Heroult of France discovered that molten cryolite (a sodium aluminum fluoride mineral) could be used to dissolve alumina and that the resulting chemical reaction would produce metallic aluminum. They found that by passing an electrical current through the cryolite/alumina mixture they could bring about the chemical reaction that converts the alumina to metallic aluminum. The Hall-Heroult process, as it is now known, remains in use today.