Patent · US Expired

Process for the preparation of hydrogen peroxide

US6447744B1 · kind B1 · utility

4Cited by

5References

9Claims

0Family size

Assignee

Degussa-Huels AG · DE

Inventors

Thomas Haas · Munster, DE
Jürgen Glenneberg · Offenbach, DE
Rudolf Wagner · Fontnas, CH
Matthias Creutz · Frankfurt, DE
Jorg Sauer · Rodenbach, DE
Rudolf Vanheertum · Alzenau, DE

Key dates

Filing date	Nov 6, 2000
Grant date	Sep 10, 2002
Priority date	—
Expiry date	Dec 30, 2020

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2208/00106
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In carrying out the hydrogenation stage of the anthraquinone process for the preparation of hydrogen peroxide in a hydrogenation reactor on a fixed bed catalyst of a particulate catalyst, the service life of the catalyst is increased in that the working solution comprising the reaction carrier and a gas phase comprising hydrogen, are passed through the hydrogenation reactor from the bottom upwards. The empty tube speed of the working solution is 0.05 to 100 m/h, preferably 10 to 50 m/h.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.