METHOD OF BIFUNCTIONAL MODIFICATION OF ZEOLITE Russian patent published in 2003 - IPC

FIELD: methods of bifunctional modification of zeolite. SUBSTANCE: proposed method is used for production of carriers containing fixed organic ligands which may be used bifunctionally both for selective extraction of salts and ions of metals from aqueous and organic solutions and for preparation of heterogenizing metal-complex catalysts of liquidphase and gas-phase processes. Dehydrated zeolite CaO is treated with dipropyl ketone and organic ligand on base of triethylene tetra-amine in fluidized organic solvent. Proposed method of modification of zeolite CaO makes it possible to new type of sorbent of ions and salts of metals on base of functionalization of cation forms of zeolites by organic complexones from macrocyclic ligands. EFFECT: enhanced efficiency. 3 ex