High demand and scarce resources make Platinum Group Metals (PGMs) the most expensive metals in the world. Therefore, recycling is the way to secure their availability, for example for Proton Exchange Membrane (PEM) electrolyzers, which is the focus of Recycalyse. However, recycling of PGMs is also very cost-demanding, therefore researchers at TU Bergakademie Freiberg in the Institute of Nonferrous Metallurgy and High-Purity Materials (INEMET) were working on the development of a cost-effective and energy-efficient method for ruthenium recovery, which is part of the novel Recycalyse electrocatalyst.

As a result, the patent DE10 2022 111 440 “Verfahren zur Rückgewinnung von Ruthenium aus einem Ruthenium-haltigen Material” was successfully submitted on 09.05.2022. In this process, ruthenium can be recovered by a one-step oxidation capture strategy to convert ruthenium species into various ruthenium complexes valuable for industry.

We are looking forward to starting our collaboration with interested industrial partners in this precious field!

Patent DE10 2022 111 440