Hybrid nanoparticle tfc membranes

B - Operations – Transporting – 01 – D

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B01D 71/00 (2006.01) B01D 61/02 (2006.01) B01D 69/10 (2006.01)

Patent

CA 2720673

Reverse osmosis membranes made by interfacial polymerization of a monomer in a nonpolar (e.g. organic) phase together with a monomer in a polar (e.g. aqueous) phase on a porous support membrane. Interfacial polymerization process is disclosed for preparing a highly permeable RO membrane, comprising: contacting on a porous support membrane, a) a first solution containing 1,3-diaminobenzene, and b) a second solution containing trimesoyl chloride, wherein at least one of solutions a) and b) contains nanoparticles when said solutions are first contacted, and recovering a highly permeable RO membrane.

L'invention porte sur des membranes d'osmose inverse fabriquées par polymérisation interfaciale d'un monomère dans une phase non polaire (p.ex. organique) avec un monomère dans une phase polaire (p.ex. aqueuse) sur une membrane de support poreuse. L'invention concerne un procédé de polymérisation interfaciale qui permet de préparer une membrane RO hautement perméable, lequel procédé consiste à mettre en contact, sur une membrane de support poreuse, a) une première solution contenant un 1,3-diaminobenzène et b) une seconde solution contenant du chlorure de trimesoyle, l'une des solutions a) et b) au moins contenant des nanoparticules lorsque lesdites solutions entrent pour la première fois en contact, et récupérer une membrane RO hautement perméable.

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