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.

公开(公告)号：US11964255B2

公开(公告)日：2024-04-23

申请号：US17278374

申请日：2019-09-23

Applicant: RHODIA OPERATIONS

Inventor： Simon Ifrah ,  Laure Jeanne Simone Bisson ,  Benjamin Faure ,  Rui Miguel Jorge Coelho Marques ,  Wei Li ,  Ling Zhu

IPC: B01J21/04 ,  B01J6/00 ,  B01J21/06 ,  B01J21/08 ,  B01J21/12 ,  B01J21/16 ,  B01J23/10 ,  B01J23/46 ,  B01J23/745 ,  B01J23/83 ,  B01J23/89 ,  B01J35/00 ,  B01J35/10 ,  B01J37/02 ,  F01N3/08 ,  F01N3/10

CPC classification number: B01J21/066 ,  B01J6/001 ,  B01J23/464 ,  B01J23/83 ,  B01J35/002 ,  B01J35/1014 ,  B01J37/0201 ,  F01N3/0835 ,  F01N3/0842 ,  F01N3/101

Abstract: Disclosed are a mixed oxide composition based on zirconium and cerium exhibiting a high reducibility, the process for preparing it and its use in the field of catalysis.