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:
Jun. 16, 2026
Filed:
Jun. 25, 2021
Basf SE, Ludwigshafen am Rhein, DE;
Sung Yeun Choi, Ludwigshafen am Rhein, DE;
Andrey Karpov, Ludwigshafen am Rhein, DE;
Christian Walsdorff, Ludwigshafen am Rhein, DE;
Patrick Hubach, Ludwigshafen am Rhein, DE;
Karl C. Kharas, Iselin, NJ (US);
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
A process for producing a porous alpha-alumina catalyst support, comprising i) preparing a precursor material; ii) forming the precursor material into shaped bodies; and iii) calcining the shaped bodies to obtain the porous alpha-alumina catalyst support. The catalyst support has a high overall pore volume, thus allowing for impregnation with a high amount of silver, while keeping its surface area sufficiently large so as to provide optimal dispersion of catalytically active species. The invention further relates to a shaped catalyst body for producing ethylene oxide by gas-phase oxidation of ethylene. Also described is a process for preparing a shaped catalyst body as described above comprising impregnating a porous alpha-alumina catalyst support obtained in the process described above with a silver impregnation solution; and b) subjecting the impregnated porous alpha-alumina support to a heat treatment.