Process for the preparation of an ultra pure solution of hydroge

Details Process for the preparation of an ultra pure solution of hydroge Process for the preparation of an ultra pure solution of hydroge

1997-06-03

1999-07-27

Langel, Wayne

Chemistry of inorganic compounds

Oxygen or compound thereof

Peroxide

C01B 1501

Patent

active

059286210

ABSTRACT:
Provided is a process for the preparation of an ultrapure hydrogen peroxide solution. The process comprises at least one sequence which includes passing a solution to be purified successively through at least one bed of anion-exchange adsorbents (AEA) and at least one bed of cation-exchange adsorbents (CEA). A non-zero proportion of the solution exiting from one of the beds is recycled to a point upstream of the one bed or upstream of a preceding bed or upstream of the first bed of the first of the at least one sequence. Also provided is a plant for the implementation of the inventive process.

REFERENCES:
patent: 3074782 (1963-01-01), Meeker et al.
patent: 4999179 (1991-03-01), Sugihara et al.
patent: 5397475 (1995-03-01), Millar et al.
patent: 5733521 (1998-03-01), Minamikawa et al.

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