Hydrogen peroxide recovery from coloured aqueous solutions

Details Hydrogen peroxide recovery from coloured aqueous solutions Hydrogen peroxide recovery from coloured aqueous solutions

C - Chemistry, Metallurgy

01

B

23/286

C01B 15/013 (2006.01) B01D 15/08 (2006.01)

Patent

CA 1336474

A method of recovering hydrogen peroxide from coloured aqueous solutions is disclosed. The solution is brought in contact with a non-ionic size-exclusion chromatography resin made up of packed particles having narrow, low molecular weight pores. The higher molecular weight coloured constituents are largely excluded from the pores causing these constituents to be more rapidly eluted with water along the exterior of the particles. Hydrogen peroxide molecules are small enough to enter the pores several times in their passage through the resin which slows their progress sufficiently to cause elution of hydrogen peroxide after the coloured constituents have been eluted, effectively resolving the two components.

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