Research Results

Scandium in Greek bauxite and bauxite residue

May 22nd, 2018|0 Comments

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).

Thermal stability of ionic liquid Cyphos IL 101

May 21st, 2018|0 Comments

In collaboration with Umicore, SIM² KU Leuven researchers investigated the thermal stability of the ionic liquid Cyphos IL 101 under various experimental conditions. The work was published in the journal Phys. Chem. Chem. Phys.

Novel approach to phosphinates and phosphonates

May 21st, 2018|0 Comments

In the framework of the ERC SOLCRIMET project SIM² KU Leuven researchers developed a versatile procedure to prepare phosphinate and phosphonate compounds, which are instrumental as solvent extraction reagents for multiple metals.

Purification of In(OH)3 using the IL [Hbet][Tf2N]

May 9th, 2018|0 Comments

Together with Umicore SIM² KU Leuven researchers have developed a new process to purify crude indium(III) hydroxide, In(OH)3, using a combined leaching/extraction system exploiting the properties of the ionic liquid [Hbet][Tf2N].

Non-aqueous SX provides enhanced separations

April 2nd, 2018|0 Comments

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.

Separation of REEs from bauxite residue leachate

March 30th, 2018|0 Comments

This new RSC Advances paper demonstrates the effectiveness of a novel supported ionic liquid phase (SILP) for the uptake of REEs (Sc, Y, Nd, Dy) in the presence of base elements (Ca, Al, Fe) from bauxite residue (BR) leachates.

New paper on the effect of the diluent in REE SX

March 20th, 2018|0 Comments

This new Hydrometallurgy paper by Kumar Batchu and Binnemans studies the effect of the diluent) on the solvent extraction of Nd using D2EHPA as extractant. Studied diluents varied from aliphatic, aliphatic-aromatic to aromatic.

New Rare-Earth Balance Problem review paper

March 17th, 2018|0 Comments

Following their previous work on the rare-earth Balance Problem, Prof. Binnemans et al. have published a new (Golden Access) review paper in the Journal of Sustainable Metallurgy. The paper has been downloaded > 1,000 times.

Ionic liquid-based solvoleaching of NdFeB magnets

March 13th, 2018|0 Comments

Ionic liquids (ILs) are widely studied to recover metals from ores or end-of-life products, but not above 100 °C and atmospheric pressure. Here the IL [Hbet][Tf2N] was used dry to leach NdFeB magnets and scrap at high temperature.

Trichloride ionic liquids for dissolving metals

February 20th, 2018|0 Comments

In the framework of the EU Horizon 2020 ERC SOLCRIMET project KU Leuven researchers have synthesised trichloride ionic liquids (ILs) which can be used for oxidative dissolution of metals and alloys under mild conditions.

Extraction of rare earths from bauxite residue

February 19th, 2018|0 Comments

In the context of the EU Horizon 2020 MSCA-ETN REDMUD project, KU Leuven researchers have published a new method to extract rare earths (REEs) from bauxite residue (red mud) by dry digestion followed by water leaching.