公开(公告)号：US20250153145A1

公开(公告)日：2025-05-15

申请号：US19022984

申请日：2025-01-15

Applicant: RHODIA OPERATIONS

Inventor： Simon Ifrah ,  Wie Li ,  Valérie Buissette ,  Stéphane Denaire ,  Rui Miguel Jorge Coelho Marques

IPC: B01J23/00 ,  B01D53/94 ,  B01J21/06 ,  B01J23/10 ,  B01J23/63 ,  B01J35/61 ,  B01J35/63 ,  B01J35/64 ,  B01J37/00 ,  B01J37/02 ,  B01J37/03 ,  B01J37/08 ,  C01G25/00

Abstract: Provided is a composition comprising at least a cerium- and zirconium-based mixed oxide comprising zirconium, cerium, lanthanum and optionally at least one rare earth other than cerium and lanthanum, obtained by an advantageous process; the mixed oxide exhibiting a high thermal resistance and are in particular capable of maintaining a large specific surface area even in use in a high temperature environment. Also provided are a process for the synthesis of the compositions, a catalytic system, and a process for treatment of exhaust gasses.