Apparatus and method for removing impurities from aqueous hydrog

Details Apparatus and method for removing impurities from aqueous hydrog Apparatus and method for removing impurities from aqueous hydrog

1994-10-12

1999-05-25

Fortuna, Ana

Liquid purification or separation

Serially connected distinct treating with or without storage...

With storage unit

210259, 2101952, 210263, B01D 6300, B01D 6100

Patent

active

059067381

ABSTRACT:
Impurities are removed from aqueous hydrogen peroxide by treating the aqueous hydrogen peroxide by reverse osmosis, cation-exchanging the aqueous hydrogen peroxide and anion-exchanging the aqueous hydrogen peroxide, and the treated ultra-pure hydrogen peroxide can be used in the electronics industries.

REFERENCES:
patent: 3387938 (1968-06-01), Leaver
patent: 4778532 (1988-10-01), McConnell et al.
patent: 4879043 (1989-11-01), Boughton et al.
patent: 4985118 (1991-01-01), Kurematsu et al.
patent: 5215665 (1993-06-01), Crofts et al.
patent: 5262058 (1993-11-01), Morris et al.

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