II-VI has successfully demonstrated its SIR process in pilot scale by processing 1.9 m3 of acid waste stream from TRONOX and producing 1.3 kg of crude scandium oxide concentrate. This is the first case of Sc oxide production from European industrial waste stream. The SIR pilot plant was subsequently been transferred to Mytilineos – Aluminium of Greece refinery where it
MEAB GmbH will set-up their solvent extraction bench scale demonstration plant in Aachen, Germany. Working with scandium hydroxide produced from Tronox acid waste solution using II-VI SIR pilot plant, they will conduct main operation steps: 1) Dissolution and impurity hydrolysis, 2) Scandium solvent extraction, and 3) Precipitation of ammonium-scandium-hexafluoride by anti-solvent addition. This method has been developed by MEAB engineers
META Nikel-Kobalt A.Ş produced their first Scandium product using MEAB’s solvent extraction mixer-settler mini-pilot plant. Scandium was separated from a Nickel and Cobalt HPAL production plant in Gördes, Turkey. META produced about 600 grams of Sc product in the form of Ammonium-Scandium-Hexafuoride ((NH4)3ScF6). After calcination, they also converted (NH4)3ScF6 to Scandium fluoride (ScF3) suitable for molten salt or metallothermic reduction.