Research Results

News

Highly selective process developed to recover germanium

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.

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Research

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.
The work is published in Separation and Purification Technology.

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EREAN

Metal recovery from spent samarium-cobalt magnets

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.

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CROCODILE

MSA: a green solvent for the recovery of REEs

Within the EU Horizon 2020 REMAGHIC project, SIM² KU Leuven developed a novel process to recover rare earths (REEs) from lamp phosphor waste by dissolution in concentrated methanesulphonic acid (MSA), which is a green solvent.

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ETN REDMUD

Scandium in Greek bauxite and bauxite residue

In the context of the EU Horizon 2020 MSCA-ETN REDMUD project, an international team of researchers have published one of the most detailed ever characterisation studies of the occurrence of scandium in Greek bauxite (residue).

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CROCODILE

Non-aqueous SX provides enhanced separations

In the framework of the ERC SOLCRIMET project KU Leuven researchers have found that replacement of water by ethylene glycol provides enhanced selectivity in the solvent extraction of transitions metals from rare earth elements.

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