公开(公告)号：US20230348287A1

公开(公告)日：2023-11-02

申请号：US17757302

申请日：2021-02-09

Applicant: BASF Corporation

Inventor： Ahmad MOINI ,  Eduard L. KUNKES ,  Jonelle Charmaine THOMAS ,  Vivek VATTIPALLI ,  Christopher R. CASTELLANO

IPC: C01B39/02 ,  B01J29/72 ,  B01D53/94

CPC classification number: C01B39/02 ,  B01J29/723 ,  B01D53/9418 ,  B01D2255/50 ,  B01D2257/40 ,  B01D2258/01

Abstract: The disclosure provides methods of preparing small pore zeolites, the method including using a first organic structure-directing agent and a second organic structure-directing agent to crystallize the zeolites, wherein the first organic structure-directing agent is bis-quaternary ammonium cations, and the second organic structure-directing agent is mono-quaternary ammonium cations. Further disclosed are small pore zeolites having a controlled framework aluminum distribution, and selective catalytic reduction catalyst compositions, articles, and systems including such zeolites promoted with a metal.