Patent · US Expired

Supported catalysts

US5352646A · kind A · utility

28Cited by

6References

11Claims

0Family size

Assignee

RHONE-POULENC CHIMIE · FR

Inventors

Gilbert Blanchard · Belleville, FR
Thierry Chopin · Saint-Leu, FR

Key dates

Filing date	Jan 11, 1993
Grant date	Oct 4, 1994
Priority date	—
Expiry date	Jan 11, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Novel supported catalysts, well adapted for the catalytic conversion of exhaust gases emanating from internal combustion engines, include a porous carrier material, e.g., alumina spheres, such porous carrier material having a catalytically effective amount of at least one non-platinum group catalytically active element, e.g., cerium, essentially homogeneously concentrated throughout the depth of a defined peripheral face surface layer (outer band or ring) thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.