Catalytic composite for purifying exhaust gases and a method...

Details Catalytic composite for purifying exhaust gases and a method... Catalytic composite for purifying exhaust gases and a method...

B - Operations, Transporting

01

J

B01J 23/10 (2006.01) B01D 53/86 (2006.01) B01D 53/94 (2006.01) B01J 23/00 (2006.01) B01J 23/44 (2006.01) B01J 23/83 (2006.01) B01J 23/89 (2006.01) B01J 37/02 (2006.01)

Patent

CA 2042664

For the preparation of a catalytic composite for purifying exhaust gases, first, at least one perov- skite-type compound oxide of the formula RMO3, where R is La or a combination of La and Ca, and M is Co, Mn or a combination thereof, is supported together with cerium dioxide and alumina sol on a heat resistant carrier made of an inorganic oxide selected from the group consisting of cordierite and mullite, and then iron and palladium are further supported together thereon. As a result, a catalytic composite having a high degree of oxidation activity at low temperatures and also having excellent heat resistance can be ob- tained.

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