UZM-8 AND UZM-8HS CRYSTALLINE ALUMINOSILICATE ZEOLITIC COMPOSITIONS AND PROCESSES USING THE COMPOSITIONS

摘要

A family of microporous aluminosilicate zeolites and substituted versions thereof which are identified as UZM-8 and UZM-8HS have been prepared. These UZM-8 compositions can be prepared using either only one or more organoammonium cations, such as diethyldimethylammonium or ethyltrimethylammonium cations and optionally an alkali and/or an alkaline earth cation as structure directing agents. The UZM-8 compositions are described by an empirical formula of MmRrAl1-xExSiyOz and have a unique x-ray diffraction pattern. The UZM-8HS are derived from the UZM-8 zeolites and have a lower aluminum content than the UZM-8 compositions. These UZM-8HS are represented by the empirical formula M'm'Rr'Al(1-x)ExSiy'Oz' and are prepared by treatments such as acid extraction and AFS treatments. Both the UZM-8 and UZM-8HS are useful in various hydrocarbon conversion processes.