B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/39, 252/1.G
B01J 37/02 (2006.01) B01D 39/20 (2006.01) B01D 53/94 (2006.01) B01J 35/04 (2006.01)
Patent
CA 1260909
Abstract of the Disclosure An exhaust gas cleaning catalyst composed of a refractory three-dimensional structure and a catalytical- ly active substance supported thereon. That surface or part of the catalyst which makes contact with an exhaust gas is formed of numerous irregularly arranged pro- trusions composed of a refractory inorganic powder having a particle diameter of 5 to 300 micrometers or a mixture of it with refractory inorganic fibers and the cata- lytically active substance supported on the protrusions. The catalyst can be produced, for example, by preparing an aqueous slurry from the refractory inorganic powder having a particle diameter of 5 to 300 micrometers or a mixture of it with the refractory inorganic fibers and a suitable dispersant, forming numerous irregularly arranged protrusions on that surface or part of a refractory three- dimensional structure which makes contact with an exhaust gas by using the resulting slurry, drying the structure optionally followed by calcination, depositing the cata- lytically active substance, and drying and calcining the resulting structure.
512739
Ikeda Yasuo
Kenji Ueda
Saito Koichi
Nippon Shokubai Kogaku Kogyo Co. Ltd.
Smart & Biggar
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