Degussa Aktiengesellschaft

Evonik Degussa Gmbh

Jürgen Rollmann

Thomas Haas

Guido Stochniol

Torsten Balduf

Georg Markowz

Birgit Bertsch-Frank

Ina Hemme

Rüdiger Schütte

Werner Wildner

Catrin Becker

Reactions between at least two fluid reactants are performed in a reactor comprising wall elements (), slot-shaped reaction spaces () and cavities () for conducting a fluid heat-carrier through. Depending on the process and throughput, a modular structural design is chosen wherein an arbitrary number of wall elements () are assembled to a right-parallelepipedal block (), the reaction spaces () are formed between lateral surfaces () of right-parallelepipedal wall elements (), the reactants are introduced into the reaction spaces () from edge regions of one side of the block () and are conducted through the reaction spaces () in parallel flows and the fluid heat-carrier is conducted through the tubular cavities () extending in the interior of the wall elements ().

Process and device for carrying out reactions in reactor with slot-shaped reaction spaces

Aqueous-organic or organic hydrogen peroxide solutions can be produced by direct synthesis in the presence of a catalyst fixed bed and an organic solvent. According to the invention, a non-explosive gas mixture comprising Hand Ois employed and a liquid reaction medium comprising organic solvent and bromide and/or iodide is passed over the fixed bed with a cross-section loading of at least 0.3 m/h. In the case of a trickle bed procedure with a cross-section loading of 0.3 m/h to 2 m/h, 4 to 10 wt. % methanolic HOsolutions can be prepared with a high productivity.

Direct synthesis of hydrogen peroxide and integration thereof into oxidation processes

Growing community of inventors

Pflaumheim, Germany

Jürgen Rollmann