B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 37/02 (2006.01) B01D 53/94 (2006.01) B01J 23/89 (2006.01) F01N 3/02 (2006.01) F01N 3/20 (2006.01)
Patent
CA 2256077
A highly durable exhaust emission control device which is provided in a container disposed in an intermediate portion of an exhaust system, wherein the exhaust emission control device comprises (1) a heat-resistant porous body having communicating pores, (2) a mixture of copper oxide and aluminum oxide supported on the surface of the porous body, and (3) platinum supported on the surface and an inner portion of the mixture, the grain size of the copper oxide being from 0.1 µm to 50 µm. The exhaust emission control device is manufactured by preparing the heat-resistant porous body; (2) applying to the porous body a slurry of a mixture of copper oxide and aluminum oxide and/or compounds convertible into these oxides by firing, and baking the mixture and/or compounds; and (3) applying a water-soluble platinum compound to the porous body, and baking the platinum compound. The platinum compound may be applied with the oxide mixture and/or the compounds of copper and aluminum to the porous body.
Ihara Tomohiko
Nakagama Syoji
Shimoda Kouhei
Marks & Clerk
Sumitomo Electric Industries Ltd.
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