A family of crystalline aluminosilicate zeolites designated UZM-5HS and derived from UZM-5 have been synthesized. The aluminum content of the UZM-5HS is lower than that of the starting UZM-5 thus changing its ion exchange capacity and acidity. These UZM-5HS are represented by the empirical formula:

M1an+Al(1-x)ExSiyOz"

and are prepared by treatments such as acid extraction and AFS treatments.

 
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