Catalyst support material containing lanthanides

Details Catalyst support material containing lanthanides Catalyst support material containing lanthanides

1989-09-15

1991-02-26

Russel, Jeffrey E.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Mixture is exhaust from internal-combustion engine

4232135, B01D 5336

Patent

active

049960318

ABSTRACT:
A catalyst undercoat (wash-coat) material comprising a plurality of stable, highly porous, co-precipitated agglomerated microcrystalline comprised of integral admixture of alumina and at least one lanthanide. The co-precipitated material may be converted to a slurry and used as an undercoat or wash-coat atop a prefabricated low surface area support. Alternatively, the co-precipitated material may be compressed or extruded into various geometric forms and these can be used as a support and as such serve both as the support and the undercoat.

REFERENCES:
patent: 3867312 (1975-02-01), Stephens
patent: 3966391 (1976-06-01), Hindin et al.
patent: 4228039 (1980-10-01), Senes et al.
patent: 4906176 (1990-03-01), Yamashita et al.
Osment, Active Aluminas as Catalyst Supports for Treatments of Automotive Exhaust Emissions, International Automotive Engineering Congress, Jan. 1973, pp. 6-9.

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