Purifying aqueous hydrogen peroxide solutions on ion-exchanging resins

The invention relates to a method of purifying an aqueous hydrogen peroxide solution by passing the solution over a cationic resin. The invention consists in passing it over the cationic resin under conditions in which the hydrogen peroxide solution is maintained at a temperature of between its free...

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Bibliographische Detailangaben
Hauptverfasser:	SANDRINE MOUTIN, CHRISTINE DEVOS
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention relates to a method of purifying an aqueous hydrogen peroxide solution by passing the solution over a cationic resin. The invention consists in passing it over the cationic resin under conditions in which the hydrogen peroxide solution is maintained at a temperature of between its freezing point and +10° C., advantageously between 0° C. and +5° C., so as to limit contamination of the solution by sulphate ions.