ORGANOMINERAL HYBRID GELS FOR EXTRACTION OF MINERALS SUCH AS LANTHANIDES AND ACTINIDES AND METHODS FOR PREPARING THESE GELS Russian patent published in 2003 - IPC

FIELD: rare metal recovery methods. SUBSTANCE: ions belonging to actinide and/or lanthanide groups are extracted from aqueous solutions by bringing the latter into contact with organomineral hybrid gel with lattice composed of following inorganic motifs: , wherein M represents Si, Ti, Zr, or Al, and in which lattice, organic molecules capable of complexing ions to be recovered are integrated, each organic molecule being covalently bound to one or several lattice M atoms. EFFECT: extended choice of rare metal extractants. 17 cl, 4 dwg, 2 tbl, 30 ex