PURIFICATION OF HYDROGEN PEROXIDE SOLUTION

PURPOSE:To safely produce a high-purity hydrogen peroxide solution at a low cost by, in removal of anionic impurities contained in a hydrogen peroxide solution, inhibiting decomposition of hydrogen peroxide caused by a bicarbonate- or carbonate-type anion-exchange resin without lowering the removing...

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Bibliographische Detailangaben
Hauptverfasser:	SHIGA SHUJIRO, MOMOBAYASHI TATSUYA, KABASAWA KOJI, SAWAKURI YASUMI
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:	PURPOSE:To safely produce a high-purity hydrogen peroxide solution at a low cost by, in removal of anionic impurities contained in a hydrogen peroxide solution, inhibiting decomposition of hydrogen peroxide caused by a bicarbonate- or carbonate-type anion-exchange resin without lowering the removing ratio of strong acid residues in the anions. CONSTITUTION:A method for purification of a hydrogen peroxide solution characterized by removal of anionic impurities in the presence of a bicarbonate- or carbonate-type anion-exchange resin from a raw material hydrogen peroxide solution having pH 1.5-5.0 and 10-60wt.% hydrogen peroxide concentration and containing a very small amount of anionic impurities while continuously or semi-continuously adding an acid having