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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.:

US 12616960 B1

PDFFull Text
Date of Patent:
May. 05, 2026

Filed:

Apr. 01, 2020

Catalyst system for producing aromatic amines

Applicant:

Basf SE, Ludwigshafen am Rhein, DE;

Inventors:

Veronika Wloka, Ludwigshafen am Rhein, DE;

Dominik Garella, Ludwigshafen am Rhein, DE;

Michael Reiser, Ludwigshafen am Rhein, DE;

Thomas Heidemann, Ludwigshafen am Rhein, DE;

Hendrik De Winne, Antwerp, BE;

Assignee:

BASF SE, Ludwigshafen am Rhein, DE;

Attorney:

Faegre Drinker Biddle & Reath LLP

Primary Examiner:

Alexander R Pagano

Int. Cl.
CPC ...
B01J 23/72 (2006.01); B01J 8/24 (2006.01); B01J 27/224 (2006.01); B01J 37/02 (2006.01); B01J 37/08 (2006.01); C07C 209/36 (2006.01);
U.S. Cl.
CPC ...
B01J 23/72 (2013.01); B01J 8/24 (2013.01); B01J 27/224 (2013.01); B01J 37/0207 (2013.01); B01J 37/082 (2013.01); C07C 209/36 (2013.01);
Abstract

The invention relates to a catalyst system suitable for hydrogenating aromatic nitro compounds (I) to form the corresponding aromatic amines (II), the catalyst system containing, as essential constituents: a component A selected from the group consisting of silicon carbide, corundum (alpha-AlO) and slightly porous to non-porous zirconium oxide (ZrO); and a component B, containing B1—a carrier substance selected from the group consisting of silicon dioxide, gamma-, delta- or theta-aluminum oxide AlO, titanium dioxide, zirconium dioxide and graphite, B2—a metal or a plurality of metals selected from the group consisting of copper, nickel, palladium, platinum and cobalt, and optionally B3—an additional metal selected from the group consisting of at least one metal selected from main group I, main group II, main group IV and sub-groups II, V, VI and VIII of the periodic table of the elements, the proportion of component A being in the range of 5 to 60 wt %, in relation to the total weight of the catalyst system, and the aromatic nitro compounds (I) being those of the general formula R—(NO), (I), and the aromatic amines (II) being those of the general formula R—(NH), (II), and the moieties R and indices n in formulas (I) and (II) having the following meaning: R is a substituted or unsubstituted aromatic C-Cmoiety and n is an integer from 1 to 5.

Find Patent Forward Citations

Wloka, Veronika. (2026). Catalyst system for producing aromatic amines (U.S. Patent No. 12616960). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12616960

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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