Chabazite synthesis method including organic and inorganic structure directing agents and chabazite zeolite with flake-like morphology

US12128389B2 · kind B2 · utility

Assignee

• BASF MOBILE EMISSIONS CATALYSTS, LLC · US

Inventors

• Rajamani Gounder · Lafayette, US
• John Rocco Di Iorio · Cambridge, US
• Casey Jones · Madison, US
• Claire Townsend Nimlos · Lakewood, US
• Vivek Vattipalli · Florham Park, US
• Subramanian Prasad · Edison, US
• Eduard L. Kunkes · Iselin, US
• Ahmad Moini · Princeton, US

Key dates

• Filing date: Jul 31, 2020
• Grant date: Oct 29, 2024
• Expiry date: Jul 31, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01N2370/04
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The disclosure generally provides zeolites having the CHA crystalline framework and methods of preparing the same. Provided herein are CHA zeolites containing intergrowths, a controlled framework aluminum distribution, or both. Further provided are CHA zeolites wherein crystals of the zeolite material have a predominantly flake-like morphology as determined by scanning electron microscopy (SEM). Further provided are catalyst compositions, articles, and systems including CHA zeolites promoted with a metal.