METHOD FOR PREPARING AN ULTRAPURE HYDROGEN PEROXIDE SOLUTION BY ION EXCHANGE WITH AN ANIONIC-CATIONIC-ANIONIC-CATIONIC SEQUENCE

摘要

The invention concerns a method for preparing an ultrapure hydrogen peroxide solution, characterised in that it comprises a sequence which involves successively passing said solution on at least four beds of cation-exchanging adsorbents (AEC) and anion-exchanging adsorbents (AEA) following the sequence: AEA } AEC } AEA } AEC.