Patent ID: 9272272
Filing Date: 2016-03-01
CPC Classification: B01D,B01J,C01B,Y02C,Y02P

Claim Text:
1. A copper-containing zeolitic material having framework structure CHA and having an alkali metal content of 1000 ppm or less, having a composition comprising the molar ratio wherein X is a trivalent element, Y is a tetravalent element, and n is at least 10, and wherein the Cu content of the zeolitic material, calculated as elemental Cu, is at least 0.5 wt.-%, based on the total weight of the calcined zeolitic material, wherein the P content of the calcined zeolitic material is below 500 ppm, and the calcined material comprises crystallites having edges, and at least 90% of the crystallites have edges with a mean length in the range of from 1 to 5 micrometer as determined by a scanning electron microscope.