Process for removing transition metal ions from an aqueous solution with a reticular ion exchange resin containing a crystalline transition metal aluminate

摘要

Crystalline transition metal aluminates having to the formulawhere M is a transition metal having a valence of +2 selected from Cu, Zn, Mn, Fe, Co, and Ni, where AZ represents negative valence ions or radicals, v is a valence of -1, -2, or -3, n is a value to provide a mol ratio of Al/M of at least 1/1, and m is an integer of from zero to the maximum for waters of hydration, with (va)+(vb) equal to 2, are prepared in alkaline aqueous medium wherein transition metal compounds to form adducts with amorphous hydrous alumina, Al(OH)₃, said adducts forming crystals when heated, said aluminates being useful as ion exchangers and as spinel precursors.