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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 9901915 B1

PDFFull Text
Date of Patent:
Feb. 27, 2018

Filed:

Feb. 04, 2015

Composition including a lanthanum perovskite on an alumina or aluminum oxyhydroxide substrate, preparation method and use in catalysis

Applicant:

Rhodia Operations, Paris, FR;

Inventors:

Simon Ifrah, La Jarrie, FR;

Olivier Larcher, Perigny, FR;

Rui Jorge Coelho Marques, LaRochelle, FR;

Michael Lallemand, Saint Denis, FR;

Julien Hernandez, Antony, FR;

Assignee:

Rhodia Operations, Paris, FR;

Attorney:
Primary Examiner:

Anthony J Zimmer

Int. Cl.
CPC ...
B01J 35/02 (2006.01); B01J 23/00 (2006.01); B01J 23/10 (2006.01); B01J 23/34 (2006.01); B01J 23/83 (2006.01); B01J 35/00 (2006.01); B01J 37/03 (2006.01); B01J 21/04 (2006.01); B82Y 30/00 (2011.01); C01G 45/12 (2006.01); C01G 49/00 (2006.01); C04B 35/26 (2006.01);
U.S. Cl.
CPC ...
B01J 35/026 (2013.01); B01J 21/04 (2013.01); B01J 23/002 (2013.01); B01J 23/10 (2013.01); B01J 23/34 (2013.01); B01J 23/83 (2013.01); B01J 35/006 (2013.01); B01J 37/031 (2013.01); B82Y 30/00 (2013.01); C01G 45/1264 (2013.01); C01G 49/0054 (2013.01); C04B 35/2675 (2013.01); B01J 2523/00 (2013.01); C01P 2002/34 (2013.01); C01P 2002/72 (2013.01); C01P 2004/64 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3227 (2013.01); C04B 2235/3229 (2013.01); Y02C 20/10 (2013.01);
Abstract

The composition according to the invention includes a perovskite of the formula LaMO, where M is at least one element selected from among iron, aluminium or manganese, in the form of particles dispersed on an alumina or aluminium oxyhydroxide substrate, characterized in that after calcination at 700° C. for 4 hours, the perovskite is in the form of a pure crystallographic phase, and in that the size of the perovskite particles does not exceed 15 nm. The composition according to the invention can be used in the field of catalysis.

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