公开(公告)号：US09901915B2

公开(公告)日：2018-02-27

申请号：US14613941

申请日：2015-02-04

Applicant: RHODIA OPERATIONS

Inventor： Simon Ifrah ,  Olivier Larcher ,  Rui Jorge Coelho Marques ,  Michael Lallemand ,  Julien Hernandez

IPC: B01J35/02 ,  B01J23/00 ,  B01J23/10 ,  B01J23/34 ,  B01J23/83 ,  B01J35/00 ,  B01J37/03 ,  B01J21/04 ,  B82Y30/00 ,  C01G45/12 ,  C01G49/00 ,  C04B35/26

CPC classification number: B01J35/026 ,  B01J21/04 ,  B01J23/002 ,  B01J23/10 ,  B01J23/34 ,  B01J23/83 ,  B01J35/006 ,  B01J37/031 ,  B01J2523/00 ,  B82Y30/00 ,  C01G45/1264 ,  C01G49/0054 ,  C01P2002/34 ,  C01P2002/72 ,  C01P2004/64 ,  C04B35/2675 ,  C04B2235/3208 ,  C04B2235/3227 ,  C04B2235/3229 ,  Y02C20/10 ,  B01J2523/3706 ,  B01J2523/842 ,  B01J2523/72 ,  B01J2523/23 ,  B01J2523/3712

Abstract: The composition according to the invention includes a perovskite of the formula LaMO3, 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.

公开(公告)号：US12214333B2

公开(公告)日：2025-02-04

申请号：US17627151

申请日：2020-07-15

Applicant: RHODIA OPERATIONS

Inventor： Simon Ifrah ,  Rui Jorge Coelho Marques ,  Wei Li ,  Ling Zhu

IPC: B01J23/10 ,  B01D53/94 ,  B01J35/50 ,  B01J35/56 ,  B01J35/61 ,  B01J35/63 ,  B01J37/00 ,  B01J37/03 ,  B01J37/04 ,  B01J37/08 ,  C01G25/00

Abstract: A mixed oxide, a catalytic composition, a catalytic wall-flow monolith, the use of the mixed oxide and the process of the preparation of the mixed oxide. The mixed oxide comprises zirconium, cerium, lanthanum and optionally at least one rare earth element other than cerium and other than lanthanum. The catalytic composition and the wall-flow monolith comprise the particles of the mixed oxide. The use of the mixed oxide is in the preparation of a coating on a filter. The process of preparation of the mixed oxide consists jet milling. The mixed oxide is a compromise between a calibrated size and a low viscosity when in the form of an aqueous slurry while retaining a high specific surface area and a high pore volume.