Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1995-12-11
1999-10-26
Griffin, Walter D.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502302, 502344, 502355, 502349, 502325, 502326, 502327, 502332, 502340, 502341, B01J 2310
Patent
active
059728302
ABSTRACT:
This catalyst support aims to improve heat resistant and durability by highly dispersing an NO.sub.x storage component. This catalyst support is produced by mixing a solution of a chemical compound including at least one element of alkali metals, alkaline-earth metals, and rare-earth elements with a solution of oxide sol of at least one metal of group IIIb, group IVa, and group IVb in the periodic table to prepare a mixed sol solution, forming the mixed sol solution into gel, and drying and calcining the gel. The obtained catalyst support is amorphous and attains a high specific surface area even when calcined at elevated temperatures, so that the catalyst support is superior in heat resistance.
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Database WPI, Section Ch, Week 9520, Derwent Publications Ltd., London, GB; Class E36, AN 95-151542--JP-A-07 075 735 (Toyota Jidosha KK), Mar. 20, 1995.
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Murachi Mikio
Taguchi Norio
Tsuji Shinji
Yoshida Takeru
Griffin Walter D.
Preisch Nadine
Toyota Jidosha & Kabushiki Kaisha
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