N.e. Chemcat Corporation

Engelhard Corporation

Teiji Yamada

Masaki Funabiki

Kunihide Kayano

A catalyst composition comprising a refractory support having deposited thereon an active layer containing a platinum group metal component comprising an alumina component having the platinum group metals rhodium and palladium dispersed thereon, a cerium compound, a strontium compound, and a zirconium compound.

Catalyst for purification of exhaust gas

Exhaust gas-purifying catalyst excellent in heat resistance and process

Exhaust gas-purifying catalyst and process for preparation thereof

An exhaust gas purification catalyst for removing carbon monoxide, hydrocarbons and nitrogen oxides from an exhaust gas and suppressing the evolution of hydrogen sulfide comprises a monolithic support and deposited thereon, at least one platinum-group element, active alumina, cerium oxide and germanium oxide. The catalyst is produced by a process which comprises

Exhaust gas purification catalyst for suppressing hydrogen sulfide

A three-way catalyst for the purification of automotive exhaust is made by depositing on a monolithic support a slurry containing a platinum group element, active alumina, cerium oxide a barium compound and a zirconium compound and calcining the support.

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Numazu, Japan

Teiji Yamada