Continuous process for the production of hydrogen peroxide according to the anthraquinone process

US4428923A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Wolfgang Kunkel · Dresden, DE
• Jorg Kemnade · Kelkheim, DE
• Dietrich Schneider · Stuttgart, DE

Key dates

• Filing date: Nov 9, 1982
• Grant date: Jan 31, 1984
• Expiry date: Nov 9, 2002

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J19/2435
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

There is provided a continuous parallel current flow process for carrying out the catalytic hydrogenation with hydrogen or a hydrogen containing gas for the production of hydrogen peroxide in the anthraquinone process using palladium black suspended in the working solution at a temperature up to 100.degree. C. and a pressure up to 15 bar absolute in a reaction space constructed as a meandering tube system in which the hydrogenation is carried out in a loop reactor made of tubes of the same nominal diameter and arranged either vertically or horizontally and connected by curving tubes (tube elbows) at flow velocities in the tubes of more than 3 m/sec.