Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Waste gas purifier
Patent
1994-03-21
1995-04-25
McMahon, Timothy M.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Waste gas purifier
4232132, 4232135, 502 65, 502 66, 502 67, 502 69, 502 71, 502 73, 502 74, 502 77, 502 87, B01D 5336
Patent
active
054096715
ABSTRACT:
A catalytic convertor for treating exhaust gas includes a first catalyst layer formed on a base material and a second catalyst layer formed on the first catalyst layer. The first catalyst layer is composed of metal-containing silicate provided with transition metal by ion exchange and at least one precious metal borne on the silicate, and the second catalyst layer is composed of metal-containing silicate provided with transition metal by ion exchange and at least one metal borne on the silicate which is selected from the group consisting of Zr, Co, Cu, Cr, Mn, Y, Fe, Ni, V, Ti, Zn, Ga, Ba, Mg, La, Ce, Pr, Nd, Sm and Tb and differs from the transition metal provided on the silicate by ion exchange.
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Komatsu Kazunari
Kyogoku Makoto
Shigetsu Masahiko
Takemoto Takashi
Watanabe Yasuto
Ferguson Gerald J.
Mazda Motor Corporation
McMahon Timothy M.
Studebaker Donald R.
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