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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 8969238 B1

PDFFull Text
Date of Patent:
Mar. 03, 2015

Filed:

Nov. 17, 2009

Nanoparticular metal oxide/anatase catalysts

Applicants:

Rasmus Fehrmann, Copenhagen, DK;

Anders Riisager, Tanstrup, DK;

Søren Birk Rasmussen, Madrid, ES;

Steffen Buss Kristensen, Valby, DK;

Andreas Jonas Kunov-kruse, Copenhagen SV, DK;

Inventors:

Rasmus Fehrmann, Copenhagen, DK;

Anders Riisager, Tanstrup, DK;

Søren Birk Rasmussen, Madrid, ES;

Steffen Buss Kristensen, Valby, DK;

Andreas Jonas Kunov-Kruse, Copenhagen SV, DK;

Assignee:

Danmarks Tekniske Universitet, Kgs. Lyngby, DK;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Patricia L Hailey

Int. Cl.
CPC ...
B01J 8/00 (2006.01); B01J 23/00 (2006.01); B01J 23/10 (2006.01); B01J 23/32 (2006.01); B01J 23/40 (2006.01); B01J 23/42 (2006.01); B01J 23/70 (2006.01); B01J 23/72 (2006.01); B01D 53/56 (2006.01); B01D 53/86 (2006.01); C01B 21/00 (2006.01); F01N 3/20 (2006.01); B01D 53/88 (2006.01); B01J 23/22 (2006.01); B01J 23/68 (2006.01); B01J 23/745 (2006.01); B01J 35/00 (2006.01); B01J 35/02 (2006.01); B01J 37/03 (2006.01); B01J 37/08 (2006.01); B82Y 30/00 (2011.01); B01J 21/06 (2006.01);
U.S. Cl.
CPC ...
F01N 3/20 (2013.01); B01D 53/8628 (2013.01); B01D 53/8668 (2013.01); B01D 53/885 (2013.01); B01J 23/22 (2013.01); B01J 23/682 (2013.01); B01J 23/72 (2013.01); B01J 23/745 (2013.01); B01J 35/0013 (2013.01); B01J 35/023 (2013.01); B01J 37/033 (2013.01); B01J 37/036 (2013.01); B01J 37/08 (2013.01); B82Y 30/00 (2013.01); B01D 2251/2062 (2013.01); B01D 2251/2067 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/206 (2013.01); B01D 2255/20707 (2013.01); B01D 2255/20715 (2013.01); B01D 2255/20723 (2013.01); B01D 2255/2073 (2013.01); B01D 2255/20738 (2013.01); B01D 2255/20761 (2013.01); B01D 2255/20769 (2013.01); B01D 2255/802 (2013.01); B01D 2255/9202 (2013.01); B01D 2255/9207 (2013.01); B01D 2257/2064 (2013.01); B01D 2257/7022 (2013.01); B01D 2257/7027 (2013.01); B01D 2257/704 (2013.01); B01D 2257/708 (2013.01); B01J 21/063 (2013.01); B01J 21/066 (2013.01); F01N 3/2066 (2013.01); F01N 2510/0682 (2013.01);
Abstract

The present invention concerns a method of preparation of nanoparticular metal oxide catalysts having a narrow particle size distribution. In particular, the invention concerns preparation of nanoparticular metal oxide catalyst precursors comprising combustible crystallization seeds upon which the catalyst metal oxide is co-precipitated with the carrier metal oxide, which crystallization seeds are removed by combustion in a final calcining step. The present invention also concerns processes wherein the nanoparticular metal oxide catalysts of the invention are used, such as SCR (deNOx) reactions of nitrogen oxides with ammonia or urea as reductant, oxidations of alcohols or aldehydes with dioxygen or air to provide aldehydes, ketones or carboxylic acids, and photocatalytic oxidation of volatile organic compounds (VOCs).

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