Invention Grant
US08975395B2 Materials for the solid/liquid extraction of heavy metal ions, containing supported N-functionalized polyazacycloalkanes 有权
用于固体/液体提取重金属离子的材料,含有负载的N-官能化的多氮杂环烷烃

Materials for the solid/liquid extraction of heavy metal ions, containing supported N-functionalized polyazacycloalkanes
Abstract:
The present invention relates to a material notably adapted for the extraction of metal cations in an aqueous medium, comprising a solid support on which are attached polyazacycloalkane compounds having a ring including at least 4 nitrogen atoms, and wherein the nitrogen atoms of the ring are substituted with coordinating groups, which each are independently: a coordinating group of formula: —(CH2)n—C(═O)—NR1R2  or else a both coordinating and binding group, fitting the formula: —(CH2)p—C(═O)—NR3-(A)-[support]. The invention also relates to methods for preparing the aforementioned materials and to different uses thereof, notably for the extraction of Pb2+ cations in an aqueous medium.
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