ZEOLITE STRUCTURE SYNTHESIZED USING MIXTURES OF ORGANIC STRUCTURE DIRECTING AGENTS

ZEOLITE STRUCTURE SYNTHESIZED USING MIXTURES OF ORGANIC STRUCTURE DIRECTING AGENTS

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, a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CASTELLANO, Christopher R, KUNKES, Eduard L, MOINI, Ahmad, THOMAS, Jonelle Charmaine, VATTIPALLI, Vivek
Format: Patent
Sprache:eng
Schlagworte:
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung: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.