公开(公告)号：US20220118427A1

公开(公告)日：2022-04-21

申请号：US17417449

申请日：2019-12-19

Applicant: RHODIA OPERATIONS

Inventor： Naotaka OHTAKE ,  Kaoru NISHIMURA ,  Toshihiro SASAKI ,  Mitsuhiro OKAZUMI

IPC: B01J23/10 ,  B01J37/08 ,  B01J35/10 ,  B01J23/44 ,  B01J27/232 ,  B01D53/94 ,  F01N3/20

Abstract: The present invention relates to the use of a resistant cerium oxide for the preparation of Lean NOx Trap catalytic composition. The invention also relates to such catalytic composition and to a method of treatment of an exhaust gas to decrease the NOx content using said catalytic composition.

公开(公告)号：US20220055017A1

公开(公告)日：2022-02-24

申请号：US17417450

申请日：2019-12-19

Applicant: RHODIA OPERATIONS

Inventor： Naotaka OHTAKE ,  Kaoru NISHIMURA ,  Toshihiro SASAKI ,  Mitsuhiro OKAZUMI

IPC: B01J23/10 ,  B01J35/02 ,  B01J35/10 ,  B01J37/03 ,  B01J37/10 ,  B01J37/18 ,  B01J6/00

Abstract: The present invention relates to cerium oxide particles that have excellent heat resistance under hydrothermal conditions at high temperature. The present invention also relates to a method for preparing such cerium oxide particles and to a catalytic composition comprising said cerium oxide.

公开(公告)号：US20170313594A1

公开(公告)日：2017-11-02

申请号：US15526610

申请日：2015-11-10

Applicant: RHODIA OPERATIONS

Inventor： Naotaka OHTAKE ,  Mitsuhiro OKAZUMI ,  Fabien OCAMPO

IPC: C01F17/00 ,  B01D53/94 ,  C09K3/14 ,  B01J20/06 ,  B01J20/28 ,  B01J37/08 ,  B01J37/03 ,  B01J35/10 ,  B01J23/10 ,  B01J20/30 ,  F01N3/08

CPC classification number: C01F17/0043 ,  B01D53/9422 ,  B01D2255/2065 ,  B01D2255/908 ,  B01J20/06 ,  B01J20/28057 ,  B01J20/28059 ,  B01J20/28061 ,  B01J20/28069 ,  B01J20/28073 ,  B01J20/28076 ,  B01J20/3071 ,  B01J20/3078 ,  B01J23/10 ,  B01J35/023 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1042 ,  B01J35/1047 ,  B01J37/031 ,  B01J37/08 ,  C01P2006/12 ,  C01P2006/13 ,  C01P2006/14 ,  C09K3/1409 ,  F01N3/0842

Abstract: The present invention relates to cerium oxide particles that have excellent heat resistance especially useful for catalysts, functional ceramics, solid electrolyte for fuel cells, polishing, ultraviolet absorbers and the like, and particularly suitable for use as a catalyst or co-catalyst material, for instance in catalysis for purifying vehicle exhaust gas. The present invention also relates to a method for preparing such cerium oxide particles, and a catalyst, such as for purifying exhaust gas, utilizing these cerium oxide particles.

公开(公告)号：US20190330073A1

公开(公告)日：2019-10-31

申请号：US16206111

申请日：2018-11-30

Applicant: RHODIA OPERATIONS

Inventor： Naotaka OHTAKE ,  Mitsuhiro OKAZUMI ,  Fabien OCAMPO

IPC: C01F17/00 ,  F01N3/08 ,  B01J20/06 ,  B01J20/28 ,  B01J35/10 ,  B01J37/08 ,  B01J23/10 ,  C09K3/14 ,  B01J20/30 ,  B01D53/94 ,  B01J37/03

Abstract: The present invention relates to cerium oxide particles that have excellent heat resistance especially useful for catalysts, functional ceramics, solid electrolyte for fuel cells, polishing, ultraviolet absorbers and the like, and particularly suitable for use as a catalyst or co-catalyst material, for instance in catalysis for purifying vehicle exhaust gas. The present invention also relates to a method for preparing such cerium oxide particles, and a catalyst, such as for purifying exhaust gas, utilizing these cerium oxide particles.