Within the framework of the ETN DEMETER project rare-earth permanent magnets were treated with solvometallurgical solutions to remove the metalllic coating prior to direct recycling. The work is published in RSC Advances
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Electrodeposition of indium from trihexyl(tetradecyl)phosphonium chloride
The high thermal stability of Cyphos IL 101 allowed SIM² KU Leuven researchers to investigate the electrochemical behavior of indium at temperatures between 100 °C and 180 °C. The electrochemical deposition of indium followed a two-step process. The work was published in Green Chemistry.
Read More »Nickel-copper-nickel coating removal from Nd‒Fe‒B and Sm‒Co permanent magnets
Rare-earths permanent magnets were treated with solvometallurgical solutions of Br2 in organic solvents to remove the Ni-Cu-Ni coating prior to direct recycling. A comparison with 2 M HNO3 treatment proved the advantages of the solvometallurgical process.
Read More »Very selective process developed to recover germanium from iron-rich solutions
Germanium is a precious metal which is mainly used as a semiconductor in electronics and infrared optic industries, and as a polymerisation catalyst for the production of polyethylene terephthalate. Due to its high supply risk and its high economic importance, germanium is considered as one of Europe’s critical metals
Read More »Green slag valorisation is now an industrial success story
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.
Read More »Chemiemagazine features SIM²’s view on critical metals
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.
Read More »Solvometallurgical recovery of metals from SmCo magnets
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.
Read More »Deep Eutectic Solvents for solubilisation of metal oxides
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.
Read More »Selective metal recovery from Fe-rich industrial residues
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.
Read More »Why restricting lead (Pb) metallurgy is a bad idea
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.
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