Patent ID: 6471940
Filing Date: 2002-10-29
Classification: C01B

Abstract:
A process for preparing zeolite [Al]-SSZ-31, comprising the steps ofproviding mixture of a zeolite source, an aluminum-containing material, an organic structure directing substance and water, drying said mixture to form a powdered dry gel, and contacting and reacting said dry gel with water stream at a saturated vapor pressure to produce an aluminum-containing zeolite [Al]-SSZ-31, wherein said organic structure directing substance is selected from the group consisting of N,Nâ€²-bis-triethyl-1,7-heptanediyl-diammonium dihydroxide, N,Nâ€²-bis-triethyl-1,8-octanediyl-diammonium dihydroxide, N,Nâ€²-bis-triethyl-1,9-nonanediyl-diammonium dihydroxide, N,Nâ€²,-bis-triethyl-1,10-decanediyl-diammonium dihydroxide, and their salts.