Invention Grant
US08974764B2 Composition including a lanthanum perovskite on an alumina or aluminium oxyhydroxide substrate, preparation method and use in catalysis
有权
在氧化铝或羟基氧化铝基体上的钙钛矿型镧的组成，其制备方法和催化剂的用途
- Patent Title: Composition including a lanthanum perovskite on an alumina or aluminium oxyhydroxide substrate, preparation method and use in catalysis
- Patent Title (中): 在氧化铝或羟基氧化铝基体上的钙钛矿型镧的组成，其制备方法和催化剂的用途
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Application No.: US13254151Application Date: 2010-02-25
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Publication No.: US08974764B2Publication Date: 2015-03-10
- Inventor: Simon Ifrah , Olivier Larcher , Rui Jorge Coelho Marques , Michael Lallemand , Julien Hernandez
- Applicant: Simon Ifrah , Olivier Larcher , Rui Jorge Coelho Marques , Michael Lallemand , Julien Hernandez
- Applicant Address: FR Paris
- Assignee: Rhodia Operations
- Current Assignee: Rhodia Operations
- Current Assignee Address: FR Paris
- Priority: FR0900929 20090302
- International Application: PCT/EP2010/052381 WO 20100225
- International Announcement: WO2010/100067 WO 20100910
- Main IPC: C01B13/00
- IPC: C01B13/00 ; C01C1/00 ; C01D1/02 ; C01G49/00 ; C01G45/12 ; C01F7/00 ; B01J23/00 ; B01J23/10 ; B01J23/83 ; B01J23/34 ; B01J35/00 ; B01J37/03 ; B82Y30/00 ; C04B35/26
Abstract:
A composition is described that includes a perovskite of the formula LaMO3, where M is at least one element selected from among iron, aluminum or manganese, in the form of particles dispersed on an alumina or aluminum oxyhydroxide substrate, wherein 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 described composition can be used in the field of catalysis.
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