Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1988-10-17
1990-03-20
Shine, W. J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502332, 502333, 502334, 4232135, B01J 2104, B01J 2340
Patent
active
049101803
ABSTRACT:
A process for the preparation of catalysts, in particular for the purification of exhaust gases from internal combustion engines, is described, which makes it possible to use supports stable up to at least 1,200.degree. C. which are free of gamma-aluminium oxide and transition aluminium oxide and nevertheless have a high catalytic activity. The catalytically active noble metal as the constituent of a composite powder is attached to the support, which in addition to the noble metal contains a thermally stable metal oxide and is prepared by the spray pyrolysis process.
REFERENCES:
patent: 4367162 (1983-01-01), Fujitani et al.
patent: 4587231 (1986-05-01), Sawamura et al.
patent: 4624941 (1986-11-01), Berndt et al.
Berndt Malte
Ksinsik Dieter
Doduco GmbH & Co.
Shine W. J.
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