The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 1988
Filed:
Sep. 09, 1986
Claus Flockenhaus, Essen, DE;
Karl-Heinz 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-Barstadt, DE;
Blagoje Levkov, Wiesbaden, DE;
Didier Engineering GmbH, Essen, DE;
Didier Werke AG, Wiesbaden, DE;
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.