SUPPORTED MEMBRANE FUNCTIONALIZED WITH HEXA- AND OCTACYANOMETALLATES, PROCESS FOR THE PREPARATION THEREOF AND SEPARATION PROCESS USING SAME

摘要

A supported membrane comprising an inorganic solid porous filtering membrane supported by an inorganic solid porous support, wherein said supported membrane comprises nanoparticles of a metallic coordination polymer with CN ligands comprising Mn+ cations, where M is a transition metal, and n is 2 or 3; and Alk+ y[M'(CN)m]x- anions, where Alk is an alkali metal, y is 0, 1 or 2, M' is a transition metal, x is 3 or 4, and m is 6 or 8; said Mn+ cations of the coordination polymer being bonded via an organometallic or coordination bond to an organic group of an organic graft chemically attached to the surface of the filtering membrane, inside the pores of the filtering membrane, and optionally inside the pores of the support. A process for preparing said supported membrane. A process for separating at least one metal cation and solid particles from a liquid medium containing same, using said supported membrane.