POLYAMIDE REVERSE OSMOSIS MEMBRANES AND THEIR PREPARATION

POLYAMIDE REVERSE OSMOSIS MEMBRANES AND THEIR PREPARATION

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:...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HOLMBERG, Brett, Anderson, KURTH, Christopher, James, BURK, Robert, Leon, ZHOU, Meijuan, KOEHLER, Jeffrey, Alan
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Beschreibung
Zusammenfassung: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.