| abstract |
To be able to produce an SCR catalyst ( 2 ), in particular one having a zeolite fraction (Z) as catalytically active fraction, in a reliable process and at the same time achieve good catalytic activity of the catalyst ( 2 ), an inorganic binder fraction (B) which is catalytically inactive in the starting state and has been treated to develop catalytic activity is mixed into a catalyst composition ( 4 ). The inorganic binder component for the binder fraction (B) is, in the starting state, preferably porous particles ( 10 ), in particular diatomaceous earth, which display mesoporosity. To effect catalytic activation, the individual particles ( 10 ) are either coated with a catalytically active layer ( 12 ) or transformed into a catalytically active zeolite ( 14 ) with maintenance of the mesoporosity. |