US 12,264,076 B2
Process for the production of the CHA-AFT zeolite intergrowth COE-10 and use thereof in heterogeneous catalysis
Andrei-Nicolae Parvulescu, Ludwigshafen am Rhein (DE); Ulrich Mueller, Ludwigshafen am Rhein (DE); Toshiyuki Yokoi, Tokyo (JP); Ute Kolb, Mainz (DE); Yong Wang, Tokyo (JP); and Yasar Krysiak, Mainz (DE)
Assigned to BASF Mobile Emissions Catalysts LLC, Iselin, NJ (US)
Appl. No. 17/594,875
Filed by BASF MOBILE EMISSIONS CATALYSTS LLC, Iselin, NJ (US)
PCT Filed May 14, 2020, PCT No. PCT/EP2020/063486
§ 371(c)(1), (2) Date Nov. 2, 2021,
PCT Pub. No. WO2020/229609, PCT Pub. Date Nov. 19, 2020.
Claims priority of application No. 19174643 (EP), filed on May 15, 2019.
Prior Publication US 2022/0324716 A1, Oct. 13, 2022
Int. Cl. C01B 39/46 (2006.01)
CPC C01B 39/46 (2013.01) 14 Claims
 
1. A process for the production of a zeolitic material comprising one or more zeolite intergrowth phases of one or more zeolites having a CHA framework structure comprising SiO2 and X2O3, and one or more zeolites having an AFT framework structure comprising SiO2 and X2O3, wherein X is a trivalent element, and
wherein the process comprises:
(1) preparing a mixture comprising one or more sources for SiO2, one or more sources for X2O3, and seed crystals comprising a zeolitic material, wherein the zeolitic material comprises SiO2 and X2O3 in its framework structure and has a CHA framework structure;
(2) heating the mixture prepared in (1) for obtaining a zeolitic material comprising one or more zeolite intergrowth phases of one or more zeolites having a CHA framework structure and one or more zeolites having an AFT framework structure; and
(3) subjecting the zeolitic material obtained in (2) to a procedure for removing at least a portion of X from the framework structure of the zeolitic material; and
wherein the mixture prepared in (1) and heated in (2) comprises substantially no organotemplate.