On April 1-5, 2019, the 6th Slag Valorisation Symposium took place. More than 200 persons experienced at first hand that slag valorisation has been transformed from an academic concept into an industrial success story.

Chemiemagazine, a Dutch monthly magazine of the Chemical Industry, has published a feature article on the scarcity of (critical) metals and other raw materials (March 2019, 40-42). SIM² KU Leuven provided its view on this crucial issue for Europe.

A solvometallurgical route for recycling of SmCo permanent magnets was developed by researchers from the SOLVOMET Group (SIM² KU Leuven). The method is based on non-aqueous solvent extraction to minimize water consumption.

The SOLVOMET Group (SIM² KU Leuven), which develops solvometallurgical flow sheets, has synthesized new Deep Eutectic Solvents that can selectively dissolve metal oxides from industrial residues derived from the mining industry.

Within the EU H2020 SOCRATES project, SIM² KU Leuven developed a process to selectively recover lead and zinc from iron-rich jarosite residue of the zinc industry. The work is published in ACS Sustainable Chemistry & Engineering.

Recently the use of lead is being called into question by some policy makers. To provide a firm metallurgical background on its crucial role in the Circular Economy, the EU ETN SOCRATES team has just published a new Policy Brief.

Within the EU REMAGHIC project, KU Leuven developed a process to recover yttrium and europium from a mixed oxide obtained by the processing of lamp phosphor waste based on solvent extraction with undiluted thiocyanate ionic liquids.

In the framework of ETN REDMUD, an integrated process was developed by KU Leuven and RWTH Aachen to selectively recover Fe and REEs from slags produced during smelting of bauxite residue. The work is published in Hydrometallurgy.

Metals in spent samarium-cobalt magnet can be recovered by oxidative dissolution of metals in trichloride ionic liquids, followed by metal removal from the leachate with a series of stripping steps. The ionic liquids can be reused for next cycles after regeneration.

ETN DEMETER proudly presents the flagship product of this 4 year-project: the first recyclable e-motor based on recycled NdFeB magnets. Featuring two of the DEMETER Researchers, the video highlights the e-motor’s ecobenefits.