SEMIPERMEABLE MEMBRANES

A method of preparing a semi-permeable membrane 79 suitable for reverse osmosis includes contacting a porous artifact 78 with an hydrated metal oxide, to form an hydrated metal oxide coated artifact. Thereafter the hydrated metal oxide coated artifact is contacted with at least one polyelectrolyte s...

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Bibliographische Detailangaben
Hauptverfasser:	ALBERT JOHANNES VAN REENEN, RONALD DOUGLAS SANDERSON, NORMAN ARTHUR DOWLER
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	A method of preparing a semi-permeable membrane 79 suitable for reverse osmosis includes contacting a porous artifact 78 with an hydrated metal oxide, to form an hydrated metal oxide coated artifact. Thereafter the hydrated metal oxide coated artifact is contacted with at least one polyelectrolyte selected from the group listed in Claim 1, thereby to form a polyelectrolyte layer in or on the hydrated metal oxide layer.