Title:
精製過酸化水素水の製造方法
Document Type and Number:
Japanese Patent JP4056695
Kind Code:
B2
Abstract:
The present invention provides a process for producing a high-purity aqueous hydrogen peroxide solution from which metal ion impurities are removed as much as possible by purifying an aqueous hydrogen peroxide solution containing metal ion impurities. Specifically, the invention provides a process for producing a purified aqueous hydrogen peroxide solution comprising contacting an aqueous hydrogen peroxide solution containing metal ion impurities first with a H<+> type cation exchange resin, secondly with a carbonate ion (CO3<2->) type or bicarbonate ion (HCO3<->) type anion exchange resin, and thirdly with a H<+> type cation exchange resin. Further, the invention provides a process for producing a purified aqueous hydrogen peroxide solution further comprising contacting said aqueous hydrogen peroxide solution with a fluoride ion (F<->) type anion exchange resin before contacting with said carbonate ion type or bicarbonate ion type anion exchange resin but after the first contact with said cation exchange resin.
Inventors:
Fujio Tanaka
Ichiro Sugawara
Taka Adachi
Mine Kazuhisa
Ichiro Sugawara
Taka Adachi
Mine Kazuhisa
Application Number:
JP2000371995A
Publication Date:
March 05, 2008
Filing Date:
December 06, 2000
Export Citation:
Assignee:
Santoku Chemical Co., Ltd.
International Classes:
B01D61/14; C01B15/013; B01D15/00; B01D21/01; B01J39/04; B01J41/04; B01J47/02; B01J49/00; C02F1/42; C02F1/52
Domestic Patent References:
| JP10114507A | ||||
| JP7187616A | ||||
| JP10259009A |
Attorney, Agent or Firm:
Shunichiro Suzuki
Koji Makimura
Chihata Takahata
Toru Suzuki
Koji Makimura
Chihata Takahata
Toru Suzuki