Title:
過酸化水素の製法及びその実施のための作用溶液
Document Type and Number:
Japanese Patent JP4416321
Kind Code:
B2
Abstract:
A cyclic anthraquinone process for producing hydrogen peroxide using at least two differently substituted 2-alkylanthraquinones and/or their tetrahydro derivatives. The working solution to be used contains (i) at least one reaction carrier from the series 2-(4-methyl-3-pentenyl) anthraquinone (IHEAQ), 2-(4-methylpentyl) anthraquinone (IHAQ) and their di- and tetrahydro derivatives such as, in particular 2-(4-methylpentyl)- beta -tetrahydroanthraquinone (THIHAQ), and (ii) at least one reaction carrier from the series of the 2-(C1- to C5)-alkylanthraquinones, especially 2-ethylanthraquinone (EAQ), and their tetrahydro derivatives. The reaction carriers according to (i) make up 5 to 95 molar %, especially 20 to 50 molar % of all reaction carriers. The method is distinguished by greater H2O2 capacity, improved hydrogenation kinetics and lesser susceptibility to disturbances. A method for making THIHAQ is also disclosed.
Inventors:
Jürgen Glenneberg
Gustav goal
Eugen Starp
Hubert Angelt
Gustav goal
Eugen Starp
Hubert Angelt
Application Number:
JP2000543387A
Publication Date:
February 17, 2010
Filing Date:
March 20, 1999
Export Citation:
Assignee:
Evonik Degussa GmbH
International Classes:
C01B15/023; B01J23/44; C07C46/00; C07C46/02; C07C50/16; C07C50/20
Domestic Patent References:
| JP9173872A | ||||
| JP58180452A | ||||
| JP59051235A | ||||
| JP1119503A | ||||
| JP1126210A | ||||
| JP4224538A |
Foreign References:
| US2966397 | ||||
| GB1252822B | ||||
| DE1195279A |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel