NANOFILTRATION PROCESS FOR IMPURITY REMOVAL

Nanofiltration membranes have been identified that can unexpectedly provide for competitive removal of silica and sulfate from brine in alkaline conditions. Such membranes are known as monolithic nanofiltration membranes and are particularly suitable for removing silica and sulfate impurities from a...

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Bibliographische Detailangaben
Hauptverfasser:	DRACKETT, THOMAS, RAMASUBBU, GANAPATHY, LASHKARI, SIAMAK, SUMMERS, DAVID, MOK, FELIX
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS THEREFOR CHEMISTRY COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM COMPOUNDS THEREOF ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	Nanofiltration membranes have been identified that can unexpectedly provide for competitive removal of silica and sulfate from brine in alkaline conditions. Such membranes are known as monolithic nanofiltration membranes and are particularly suitable for removing silica and sulfate impurities from a brine stream in a brine electrolysis plant. On a identifié des membranes de nanofiltration qui permettent contre toute attente l'élimination compétitive de silice et de sulfate de la saumure dans des conditions alcalines. Ces membranes sont connues en tant que membranes de nanofiltration monolithiques et conviennent particulièrement à l'élimination des impuretés de silice et de sulfate d'un courant de saumure dans une installation d'électrolyse de saumure.