Coordination and Supramolecular Chemistry for Aqueous Metal Ion Separations (#97)
Aqueous metal ion separation systems (hydrometallurgy) are critical in the separation and production of many economically and strategically important metals. With increasingly complex ore mineralogy and thus more challenging solution-based separation requirements, these processes are of growing importance to several industries, for example in uranium and rare earth element production. Improving the inefficiencies and economics of these processes requires a fundamental understanding of chemical opportunities and challenges. For example, in solvent extraction, organic soluble chelating ligands can be designed with specific molecular structures to selectively bind target metal ions. The development of new and better aqueous metal separation systems is reliant on our fundamental understanding of the underpinning chemical structure that drives selective ion recognition. The focus of this symposium is, therefore, on new fundamental insights -- both theoretical and experimental -- that pertain to chemical, and higher-ordered, structure in solution-based metal separation systems. The key issues that will be addressed include (but are not limited to): metal-ligand coordination in aqueous and organic solutions; metal ion recognition by receptors; metal ion encapsulation by proteins and nano-scale materials; self-assembly and aggregation phenomena in separation systems; crystallization and precipitation of metal salts.
Last update: Dec 28, 2015