公开(公告)号：BR9909563A

公开(公告)日：2000-12-19

申请号：BR9909563

申请日：1999-03-20

Applicant: DEGUSSA

Inventor： GLENNEBERG JUERGEN DR ,  GOOR GUSTAAF DR ,  STAAB EUGEN DR ,  ANGERT HUBERT DR

IPC: C01B15/023 ,  C07C46/00 ,  C07C46/02 ,  C07C50/16 ,  C07C50/20

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.