Method for purifying a composition comprising hydrogen peroxide
AssigneeArkema France
InventorMyriam GERBIER
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Abstract
The present invention relates to a process for the purification of an aqueous hydrogen peroxide solution, comprising at least one treatment on a reverse osmosis membrane and at least one electrodeionization treatment. The invention also relates to a process for the preparation of an aqueous hydrogen peroxide solution, comprising at least one stage of synthesis of an aqueous hydrogen peroxide solution, at least one treatment on a reverse osmosis membrane and at least one electrodeionization treatment of said solution. The invention also relates to an aqueous hydrogen peroxide solution capable of being obtained by the purification process or the preparation process, as are defined above.
Claims15
A process for the purification of an aqueous solution containing hydrogen peroxide, comprising at least one treatment on a reverse osmosis membrane and at least one electrodeionization treatment, the membrane being chosen from the group consisting of a membrane of polyamide, cellulose, polypiperazine, polyacrylonitrile and polysulfone type.
A process for the preparation of an aqueous hydrogen peroxide solution, comprising:
- at least the production of an aqueous hydrogen peroxide solution,
- at least one treatment on a membrane of polyamide, cellulose, polypiperazine, polyacrylonitrile and polysulfone type, and at least one electrodeionization treatment of the aqueous hydrogen peroxide solution.
Dependencies are inferred from the claim text.