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Stefan Kotrel Phones & Addresses

  • Bedminster, NJ
  • San Diego, CA
  • Genoa, NY

Publications

Us Patents

Process For Producing A Catalyst And Use Of The Catalyst

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US Patent:
8293675, Oct 23, 2012
Filed:
Nov 6, 2008
Appl. No.:
12/742026
Inventors:
Stefan Kotrel - Bedminster NJ, US
Gerhard Cox - Bad Duerkheim, DE
Ekkehard Schwab - Neustadt, DE
Alexander Panchenko - Ludwigshafen, DE
Assignee:
BASF SE - Ludwigshafen
International Classification:
H01M 4/88
H01M 4/02
H01M 4/36
H01M 4/90
H01M 4/92
H01M 4/94
B01J 31/00
B01J 21/18
B01J 23/00
B01J 23/40
B01J 23/74
US Classification:
502185, 502101, 502150, 502151, 502161, 502173, 429523, 429524, 429525, 429526, 429527
Abstract:
The invention relates to a process for producing a catalyst comprising a metal of the platinum group and a second metal selected from among the metals of the platinum group or the transition metals, in which a catalyst comprising the metal of the platinum group is mixed with a complex comprising the second metal to give a dry powder in a first step and the powder is subsequently heat treated to form a compound between the metal of the platinum group and the second metal. The invention further relates to the use of the catalyst produced according to the invention.

Process For The Continuous Production Of A Catalyst

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US Patent:
8569196, Oct 29, 2013
Filed:
Aug 19, 2009
Appl. No.:
13/061040
Inventors:
Ekkehard Schwab - Neustadt, DE
Stefan Kotrel - Bedminster NJ, US
Alexander Panchenko - Ludwigshafen, DE
Sigmar Braeuninger - Hemsbach, DE
Sandra Magnus - Plankstadt, DE
Claudia Querner - Ludwigshafen, DE
Assignee:
BASF SE - Ludwigshafen
International Classification:
B01J 21/18
B01J 23/40
B01J 23/74
C22C 5/04
C22C 19/03
C22C 19/07
US Classification:
502185, 422435, 422441, 422456, 422463, 422465, 422466, 422468
Abstract:
The invention relates to a process for the continuous production of a catalyst comprising an alloy of a metal of the platinum group and at least a second metal as alloying metal selected from among the metals of the platinum group and the transition metals, in which a catalyst comprising the metal of the platinum group is mixed with at least one complex each comprising the alloying metal to give an alloy precursor and the alloy precursor is heated in a continuously operated furnace to produce the alloy.

Three Way Conversion Catalyst With Alumina-Free Rhodium Layer

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US Patent:
8617496, Dec 31, 2013
Filed:
Jan 13, 2012
Appl. No.:
13/350157
Inventors:
Junmei Wei - Berkeley Heights NJ, US
Attilio Siani - Hannover, DE
Mirko Arnold - Hannover, DE
Stefan Kotrel - Bedminster NJ, US
Stephan Siemund - Pattensen, DE
Knut Wassermann - Princeton NJ, US
Assignee:
BASF Corporation - Florham Park NJ
International Classification:
B01D 53/94
B01J 23/44
B01J 23/46
B01J 37/00
F01N 3/28
US Classification:
4232132, 4232135, 60274, 60299, 502304, 502325, 502339, 502349, 502514, 502439, 50252712
Abstract:
Provided are exhaust systems and components suitable for use in conjunction with gasoline engines to treat gaseous emissions such as hydrocarbons, nitrogen oxides, and carbon monoxides. Layered three-way conversion (TWC) catalysts comprise an outer layer whose rhodium is supported by an oxygen storage component, such as a ceria-zirconia composite, and the outer layer is substantially free from alumina as a support. The rhodium-containing layer can be free of all other precious metals, such as platinum and palladium. A lower palladium layer is provided where the palladium is supported by a refractory metal oxide. The lower palladium layer can be free of rhodium and platinum and can contain an oxygen storage component that is the same or different from that in the rhodium-containing layer. Methods of making and using these catalysts are also provided.

Multilayered Catalyst Compositions

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US Patent:
20100104491, Apr 29, 2010
Filed:
Oct 30, 2009
Appl. No.:
12/609622
Inventors:
Michel Deeba - East Brunswick NJ, US
Stephan Siemund - Pattensen, DE
Xinyi Wei - Princeton NJ, US
Stefan Kotrel - Bedminster NJ, US
Knut Wassermann - Princeton NJ, US
Glenn Svoboda - Branchburg NJ, US
Harold Rabinowitz - Montclair NJ, US
Assignee:
BASF Catalysts LLC - Florham Park NJ
International Classification:
B01D 53/56
B01D 53/86
US Classification:
4232391, 422177
Abstract:
A layered three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. Engine exhaust treatment system and methods of using the same are also provided. The catalytic material can be provided in layers such that a larger amount of oxygen storage component is provided in a downstream zone as compared to an upstream zone. For example, the upstream zone can be configured to have one, two, or three layers, and the downstream zone can be independently configured to have one, two, or three layers. In one or more embodiments, the catalyst supported on a carrier has three layers, where at least two of the layers are zoned to have an oxygen storage component being present in an upstream zone in an amount that is less than the oxygen storage component present in the downstream zone.

Catalyst And Process For Producing It And Its Use

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US Patent:
20110118110, May 19, 2011
Filed:
Aug 1, 2008
Appl. No.:
12/674909
Inventors:
Stefan Kotrel - Bedminster NJ, US
Gerhard Cox - Bad Duerkheim, DE
Ekkehard Schwab - Neustadt, DE
Alexander Panchenko - Ludwigshafen, DE
Assignee:
BASF SE - Ludwigshafen
International Classification:
B01J 23/89
B01J 23/46
B01J 23/44
B01J 21/18
B01J 37/08
B01J 37/03
B82Y 30/00
B82Y 40/00
US Classification:
502184, 502326, 502339, 502331, 502185, 977810, 977896
Abstract:
The invention relates to a catalyst comprising an alloy of at least two different metals of which at least one metal is a metal of transition group VIII. The alloy is present in at least two phases having different degrees of alloying. The invention further relates to a process for producing the catalyst and a use of the catalyst.

Thermally Stable Catalyst Carrier Comprising Barium Sulfate

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US Patent:
20120165185, Jun 28, 2012
Filed:
Dec 27, 2010
Appl. No.:
12/978712
Inventors:
Gary A. Gramiccioni - Madison AL, US
Kenneth R. Brown - Athens AL, US
Michel Deeba - East Brunswick NJ, US
Stefan Kotrel - Bedminster NJ, US
Knut Wassermann - Princeton NJ, US
Assignee:
BASF Corporation - Florham Park NJ
International Classification:
B01J 27/053
B01J 37/02
B01J 32/00
US Classification:
502217, 502439
Abstract:
Provided herein is a barium sulfate-containing catalyst carrier. The catalyst carrier is useful for supporting an exhaust gas purification catalyst, such as a three way conversion catalyst. In an embodiment, the carrier comprises BaSO/thermally stable alumina. Further provided is a process for preparing the catalyst carrier, with or without precious metals, comprising treating a barium oxide/alumina or barium carbonate/alumina with a stoichiometric amount of sulfuric acid (HSO), thus forming BaSO/alumina in situ in good yield and at low cost.

Catalyst With Metal Oxide Doping For Fuel Cells

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US Patent:
20120178018, Jul 12, 2012
Filed:
Sep 22, 2010
Appl. No.:
13/497626
Inventors:
Claudia Querner - Ludwigshafen, DE
Stefan Kotrel - Bedminster NJ, US
Ekkehard Schwab - Neustadt, DE
Oemer Uensal - Mainz, DE
Sigmar Braeuninger - Hemsbach, DE
Assignee:
BASF SE - Ludwigshafen
International Classification:
H01M 4/92
H01M 4/90
H01M 8/10
H01M 4/88
US Classification:
429524, 429535
Abstract:
The invention relates to a catalyst for fuel cells which comprises a support, at least one catalytically active metal from the platinum group or an alloy comprising at least one metal of the platinum group and also at least one oxide of at least one metal selected from among Ti, Sn, Si, W, Mo, Zn, Ta, Nb, V, Cr and Zr. The invention further relates to a process for producing such a catalyst and its use.
Stefan Kotrel from Bedminster, NJ, age ~56 Get Report