| abstract |
The invention relates to a method for preparing a catalyst containing YO 2 And X 2 O 3 Wherein the method comprises the steps of: (1) providing a mixture comprising one or more YO 2 Source, one or more X 2 O 3 A source, one or more compounds containing an optionally substituted ethyltrimethyl cation and one or more tetraalkylammonium cations R 1 R 2 R 3 R 4 N + As a structure directing agent; (2) crystallizing the mixture obtained in step (1) to obtain a zeolitic material having a CHA-type framework structure; wherein Y is a tetravalent element and X is a trivalent element, wherein R 1 、R 2 And R 3 Independently of one another, represent alkyl, wherein R 4 Represents cycloalkyl, and wherein YO of the mixture in (1) 2 :X 2 O 3 A molar ratio in the range of 2 to 1,000; as well as the zeolitic material obtainable according to the process of the present invention and its uses. |