Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1989-09-05
1991-09-03
Heller, Gregory A.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
4232135, B01J 2300, B01J 800, C01B 2100
Patent
active
050455214
ABSTRACT:
An oxidizing and/or reducing exhaust gas purification catalyst with a reduced tendency to emit H.sub.2 S contains active Al.sub.2 O.sub.3 as carrier which is charged with CeO.sub.2 and optionally ZrO.sub.2 as well as Pt, Pd and/or Rh and, in addition, 0.1 to 40% by weight ZnO relative to Al.sub.2 O.sub.3.
REFERENCES:
patent: 4005177 (1977-01-01), Weidenbach et al.
patent: 4122039 (1978-10-01), Kobylinski et al.
patent: 4581343 (1986-04-01), Blanchard et al.
patent: 4963521 (1990-10-01), Engler et al.
Engler Bernd
Koberstein Edgar
Lox Egbert
Degussa - Aktiengesellschaft
Heller Gregory A.
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