Title:
【発明の名称】再循環でのイオン交換による超高純度過酸化水素溶液の製造方法
Document Type and Number:
Japanese Patent JP2002500612
Kind Code:
A
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.
Inventors:
Dubo, christine
Dumei, Di Deal
Redon Henry
Dumei, Di Deal
Redon Henry
Application Number:
JP50032999A
Publication Date:
January 08, 2002
Filing Date:
May 27, 1998
Export Citation:
Assignee:
Rail Liquide Society Anonymous Pool Retude e Rex Prowation de Procede Georges Claude
International Classes:
B01J39/04; B01J41/04; B01J47/02; C01B15/013; (IPC1-7): C01B15/013; B01J39/04; B01J41/04
Attorney, Agent or Firm:
Takehiko Suzue (4 outside)