EP 2293874 A2 20110316 - METAL UTILIZATION IN SUPPORTED, METAL-CONTAINING CATALYSTS
Title (en)
METAL UTILIZATION IN SUPPORTED, METAL-CONTAINING CATALYSTS
Title (de)
METALLVERWENDUNG IN GETRÄGERTEN, METALLHALTIGEN KATALYSATOREN
Title (fr)
UTILISATION DE MÉTAL DANS DES CATALYSEURS SUPPORTÉS CONTENANT UN MÉTAL
Publication
Application
Priority
- US 2009042562 W 20090501
- US 4946508 P 20080501
Abstract (en)
[origin: WO2009135150A2] Generally, the present invention relates to improvements in metal utilization in supported, metal-containing catalysts. For example, the present invention relates to methods for directing and/or controlling metal deposition onto surfaces of porous substrates. The present invention also relates to methods for preparing catalysts in which a first metal is deposited onto a support (e.g., a porous carbon support) to provide one or more regions of a first metal at the surface of the support, and a second metal is deposited at the surface of the one or more regions of the first metal. Generally, the electropositivity of the first metal (e.g., copper or iron) is greater than the electropositivity of the second metal (e.g., a noble metal such as platinum) and the second metal is deposited at the surface of the one or more regions of the first metal by displacement of the first metal. The present invention further relates to treated substrates, catalyst precursor structures and catalysts prepared by these methods. The invention further relates to use of catalysts prepared as detailed herein in catalytic oxidation reactions, such as oxidation of a substrate selected from the group consisting of N-(phosphonomethyl)iminodiacetic acid or a salt thereof, formaldehyde, and/or formic acid.
IPC 8 full level
B01J 23/56 (2006.01); B01J 21/18 (2006.01); B01J 23/62 (2006.01); B01J 23/89 (2006.01); B01J 35/00 (2006.01); B01J 35/10 (2006.01); B01J 37/02 (2006.01); C07F 9/38 (2006.01)
CPC (source: EP)
B01J 23/56 (2013.01); B01J 23/626 (2013.01); B01J 23/8906 (2013.01); B01J 23/8913 (2013.01); B01J 23/8926 (2013.01); B01J 35/30 (2024.01); B01J 35/392 (2024.01); B01J 35/393 (2024.01); B01J 35/397 (2024.01); B01J 35/617 (2024.01); B01J 37/0018 (2013.01); B01J 37/0203 (2013.01); C07C 227/02 (2013.01); C07F 9/3813 (2013.01); B01J 21/18 (2013.01); B01J 35/66 (2024.01); B01J 37/0205 (2013.01); B01J 37/0211 (2013.01); B01J 37/08 (2013.01)
Citation (search report)
See references of WO 2009135150A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009135150 A2 20091105; WO 2009135150 A3 20100506; AR 071623 A1 20100630; AR 096669 A2 20160127; AU 2009242512 A1 20091105; AU 2009242512 B2 20141023; BR PI0911514 A2 20151006; BR PI0911514 B1 20180327; CA 2725434 A1 20091105; CA 2725434 C 20170228; CN 102076409 A 20110525; CN 105363475 A 20160302; EP 2293874 A2 20110316; MX 2010012009 A 20101130; MX 304650 B 20121026
DOCDB simple family (application)
US 2009042562 W 20090501; AR P090101602 A 20090504; AR P140102333 A 20140619; AU 2009242512 A 20090501; BR PI0911514 A 20090501; CA 2725434 A 20090501; CN 200980124848 A 20090501; CN 201510845741 A 20090501; EP 09739952 A 20090501; MX 2010012009 A 20090501