A process for the preparation of a SCR active zeolite catalyst and SCR active zeolite catalyst

There are provided a method for producing an SCR-active zeolite catalyst and a correspondingly produced zeolite catalyst. For producing an Fe-ion-exchanged zeolite is first subjected in a reducing hydrocarbon atmosphere to a first heat treatment (3) in a range between 300 ° C and 600 ° C, with the oxidation state of the Fe ions decreases and / or the dispersity the Fe ions increases on the zeolite, the reduced zeolite then in an oxidizing atmosphere a second heat treatment (4) is between 300 ° C and 600 ° C is subjected, said hydrocarbon radicals or hydrocarbon radicals oxidatively removed and the zeolite during the first and the second temperature treatment kaziniert to a catalyst mass (2). By this method of contained iron is stabilized in an oxidation state less than +3 and / or creating a permanent increase in dispersity of the Fe ion on the zeolite in the zeolite. In this way, a high SCR activity in a temperature range of below 300 ° C is achieved.