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Visar resultat 1 - 5 av 19 avhandlingar som matchar ovanstående sökkriterier.
1. Heterometallic Oxo-Alkoxides of Europium, Titanium and Potassium
Sammanfattning : Coordination compounds of europium and titanium with oxide, ethoxide (OCH2CH3), iso-propoxide (OCH(CH3)2) and tert-butoxide (OC(CH3)3) ligands have been studied. These belong to the general class of oxo-alkoxides, MxOy(OR)z, with alkoxide ligands (OR) containing an organic, aliphatic part R. LÄS MER
2. Development of Polyamide Solvent Extraction Reagents for Trivalent Lanthanides
Sammanfattning : Rare earth elements (REEs), including lanthanides, are critical materials for many industrial technologies. As a result recycling of end-of-life products containing REEs might be beneficial, as this could partially satisfy the growing demands of industry for these elements. LÄS MER
3. Robust Multi-objective Optimization of Rare Earth Element Chromatography
Sammanfattning : Rare earth elements comprise the metallic elements known as lanthanides as well as scandium and yttrium. They are extensively used in modern technological industries and are considered as strategic commodities in many countries. LÄS MER
4. Hydrometallurgical recovery of rare earth elements from flourescent lamp waste fractions
Sammanfattning : Recovery and reuse of materials is important for a circular economy. In recent years the recovery of critical metals from end-of-life products has received increased attention. Various streams, e.g. LÄS MER
5. Eutectic Modification of Al-Si casting alloys
Sammanfattning : Aluminum alloys with silicon as the major alloying element are the most widely used aluminum casting alloys. The eutectic phase in these alloys is formed by hard and brittle silicon plates in an aluminum matrix. Such silicon plates can act as crack propagation paths deteriorating the toughness of the material. LÄS MER