Process for purifying hydrogen peroxide aqueous solution

Details Process for purifying hydrogen peroxide aqueous solution Process for purifying hydrogen peroxide aqueous solution

C - Chemistry, Metallurgy

01

B

C01B 15/013 (2006.01) C01B 15/023 (2006.01)

Patent

CA 2078376

- 34 - Abstract This invention relates to a process for purifying a hydro- gen peroxide aqueous solution, which comprises bringing a high concentration hydrogen peroxide aqueous solution containing a large amount of phosphoric acid obtained by extracting with water a reaction mixture prepared by a method of forming hydrogen peroxide by an oxidation-reduc- tion process of anthraquinones, into contact with specific active alumina particles at a temperature of 0 to 50 °C for 6 to 500 minutes to remove a phosphoric acid component from the above high concentration hydrogen peroxide aqueous solution at a high rate substantially without causing decomposition of hydrogen peroxide.

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