Zeolite SSZ-52x
AssigneeChevron U.S.A. Inc.
InventorTracy Margaret Davis
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Abstract
The present invention relates to new crystalline zeolite SSZ-52x prepared using a quaternary ammonium cation templating agent, for example, having the structure: wherein X− is an anion which is not detrimental to the formation of the SSZ-52x. SSZ-52x is useful as a catalyst and shows improved durability, particularly with regard to NOx conversion.
Claims14
An aluminosilicate molecular sieve composition comprising at least one intergrowth phase comprising a SFW framework type molecular sieve and an AFX framework type molecular sieve, wherein a ratio of the SFW framework type molecular sieve to the AFX framework type molecular sieve in the at least one intergrowth phase is in a range of from 60:40 to 70:30, as determined by powder X-ray diffraction.
Dependencies are inferred from the claim text.