Process for the preparation of an ultra pure hydrogen peroxide solution by the ion exchange by sequence: anionic-cationic-anionic-cationic
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsHenry Ledon, Martine Carre, Didier Demay, Christine Devos, Serge Jeanin
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Abstract
Provided is a process for the preparation of an ultrapure hydrogen peroxide solution. The process comprises at least one sequence which includes successively passing a solution to be purified through at least two beds of cation-exchange adsorbents (CEA) and two beds of anion-exchange adsorbents (AEA) according to the sequence: AEA .fwdarw. CEA .fwdarw. AEA .fwdarw. CEA Also provided is a plant for the implementation of the inventive process.
Claims9
A process for the preparation of an ultrapure hydrogen peroxide solution, comprising at least one sequence which includes successively passing a hydrogen peroxide solution to be purified through at least two beds of cation exchange adsorbents (CEA) and at least two beds of anion-exchange adsorbents (AEA) according to the sequence:
- AEA .fwdarw. CEA .fwdarw. AEA .fwdarw. CEA.
Dependencies are inferred from the claim text.