Monolithic catalyst for exhaust gas purification

Details Monolithic catalyst for exhaust gas purification Monolithic catalyst for exhaust gas purification

1984-03-23

1985-07-09

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Nitrogen compound containing

502252, 502262, 502303, 4232135, B01J 2104, B01J 2310, B01J 2342, B01J 2346

Patent

active

045282790

ABSTRACT:
A monolithic catalyst, for the purification of exhaust gases from an internal combustion engine, comprising: an inert carrier; a film of alumina and rare earth oxides coated onto the surface of said inert carrier, wherein Ce and La are present in said film at an atomic ratio of Ce/La of 0.05-0.3 and the total content of rare earth oxides in said film is 2-50 wt. %, measured as R.sub.2 O.sub.3, wherein R is an element of the lanthanide series of the Periodic Table; and said film carries a catalyst component containing at least one element of the platinum family.

REFERENCES:
patent: 3776859 (1973-12-01), Simpson
patent: 3883444 (1975-05-01), Maselli et al.
patent: 4170573 (1979-10-01), Ernest et al.
patent: 4183829 (1980-01-01), Adachi et al.
patent: 4274981 (1981-06-01), Suzuki et al.

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