The PLATIRUS project aims at reducing the European deficit of Platinum Group Metals (PGMs), by upscaling to industrial relevant levels a novel cost-efficient and miniaturised PGMs recovery and raw material production process. The targeted secondary raw materials will be autocatalysts, electronic waste (WEEE) and tailings and slags from nickel and copper smelters, opening-up an important range of alternative sources of these critical raw materials, with the potential to substitute a large amount of primary raw materials which are becoming more and more scarce in Europe. For the first time five of the major research centres in Europe will collaborate in developing and fine tuning the most advanced recovery processes for PGMs. This joint effort will lead to a unique exchange of know-how and best practices between researchers all over Europe, aiming at the selection of the recycling process and the preparation of the Blueprint Process Design that will set the basis for a new PGM supply chain in the EU. Two primary and secondary material producers with a consolidated business model will carry out validation of the innovative recovery processes in an industrially relevant environment by installing and testing them in an industrially relevant environment and benchmarking with the currently adopted recovery processes. A recycling company will provide a link to market introduction by manufacturing autocatalysts with second-life PGMs obtained via the PLATIRUS technology. Two large automotive companies will validate the material produced through the new recovery process, and ensure end-user industry driven value chains for recovered PGM materials. LCA, economic and environment assessment of the whole process will be led by a specialized consultancy company. Finally, the PLATIRUS project will be linked to European and extra-European relevant stakeholders, research activities and industries, with a solid dissemination, communication and exploitation plan.

The cobalt (Co) and nickel (Ni) demand is expected to be about 20 times higher in 2040 than in 2020. Given that Europe plays only a minor role in the global Ni/Co supply chains, which are concentrated in the DRC, Indonesia and China, we face a serious problem in securing a reliable, affordable and sustainable supply of battery-grade Ni/Co, vital for Europe’s aims to be climate-neutral by 2050. In view of a “domestic and foreign sourcing” procurement model, ENICON exploits the potential of (low-grade) Ni/Co resources within Europe – i.e. sulphidic Ni/Co ores and derived Ni/Co-bearing pyrite and silicate tailings, and limonitic/saprolitic laterite Ni(/Co) ores – while improving and developing the Ni/Co-refining capacity that can process imported ores, concentrates and intermediates. ENICON comprises both major improvements to existing Ni/Co metallurgical unit operations in Europe as well as the development of a new HCl-based route for both Ni/Co sulphide concentrates and laterites. ENICON’s HCl-route dispenses with the old-school hydro-approach of continuously precipitating and redissolving metals that requires lots of chemicals and creates problematic waste streams. The HCl-based route can be extended to the downstream processing of FeNi (Class-II Ni) obtained from laterites; (2) Mixed (Ni/Co) Sulphide/Hydroxide Precipitate (MSP/MHP) from the bioleaching of Co-rich pyrite tailings; and Ni/Co-containing silicate tailings. ENICON targets a “forensic geometallurgy” protocol, making it possible to identify and mitigate the mineralogical and textural reasons for processing losses along existing and new flowsheets. To make the transition to (near) zero-waste processing and to further reduce CO2-footprints, ENICON develops enhanced mineral-matrix valorisation processes. The outputs from ENICON’s group of European Ni/Co mining, processing and refining companies will all be benchmarked in terms of positive environmental and techno-economic impacts against current methods.