Solid-phase materials for chelating metal ions and methods of making and using same

摘要: A solid material for recovering metal ions from aqueous streams, and methods of making using the material, are disclosed. The is made by covalently bonding a chelating agent to silica-based solid, or in-situ condensing ceramic precursors along with accomplish covalent bonding. preferably comprises oxime type head, salicylaldoxime-type molecule, an organic tail bonded head. hydrocarbon includes carbon-carbon double bond, which instrumental in step condensation. invented may be contacted directly streams containing ions, selective such as copper (II) even presence iron (III) other materials that present earthen materials. high selectivity used recover mining plating industry replace costly toxic solvent extraction steps conventional processing.