Process for the manufacture of catalyst molding

US4746483A · kind A · utility

Assignees

• Didier Engineering GmbH · DE
• Didier-Werke AG · DE

Inventors

• Claus Flockenhaus · Essen, DE
• Karl H. Laue · Hattingen, DE
• Klaus Merkel · Essen, DE
• Erich Hackler · Essen, DE
• Johann Jansen · Duisburg, DE
• Arnold Max · Bottrop, DE
• Werner Stender · Raesfeld, DE
• Reinhard Kruse · Wesel, DE
• Hartmut Kainer · Wiesbaden, DE
• Daniel Grimm · Schlangenbad, DE
• Blagoje Levkov · Wiesbaden, DE

Key dates

• Filing date: Sep 9, 1986
• Grant date: May 24, 1988
• Expiry date: Sep 9, 2006

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D53/8628
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In a process for the manufacture of catalyst moldings a natural raw material containing Fe.sub.2 O.sub.3, Cr.sub.2 O.sub.3 or another such catalyst component such as TiO.sub.2, NbO.sub.2, WO.sub.3, V.sub.2 O.sub.5 or MoO.sub.3 is screened to a grain size equal to or less than approximately 0.25 mm. This screened base mixture is thoroughly blended, and then preferably a concentrated sulphuric acid is added. This mixture of material is then pressed into a molding in a hydraulic press with a pressure of approximately 500 bar to produce the molding.