A process is provided for preparing zeolite, particularly [Al]-SSZ-31, which comprises the steps of providing a mixture of a zeolite source, an aluminum-containing material, an organic structure directing substance, preferably at least one selected from the group consisting of N,N'-bis-triethyl-1,6-hexanediyl-diammonium dihydroxide, N,N'-bis-triethyl-1,7-heptanediyl-diammonium dihydroxide, N,N'-bis-triethyl-1,8-octanediyl-diammonium dihydroxide, N,N'-bis-triethyl-1,9-nonanediyl-diammonium dihydroxide, N,N'-bis-triethyl-1,10-decanediyl-diammonium dihydroxide, and their salts, and water; drying said mixture to form a powdered dry gel; and contacting and reacting said dry gel with steam at a saturated vapor pressure to produce an aluminum-containing zeolite [Al]-SSZ-31.

Un processus est donné pour préparer le zéolite, en particulier [ Al]-SSZ-31, qui comporte les étapes de fournir un mélange d'une source de zéolite, d'un matériel aluminium-contenant, d'une structure organique dirigeant la substance, de préférence au moins d'une choisie dans le groupe de N, de N'-bis-triethyl-1, de dihydroxide de 6-hexanediyl-diammonium, de N, de N'-bis-triethyl-1, de dihydroxide de 7-heptanediyl-diammonium, de N, de N'-bis-triethyl-1, de dihydroxide de 8-octanediyl-diammonium, de N, de N'-bis-triethyl-1, de dihydroxide de 9-nonanediyl-diammonium, de N, de N'-bis-triethyl-1, de dihydroxide de 10-decanediyl-diammonium, et de leurs sels, et eau ; ledit mélange de séchage pour former un gel sec en poudre ; et entrant en contact avec et réagissant ledit gel sec avec la vapeur à une pression saturée de vapeur de produire un zéolite aluminium-contenant [ Al]-SSZ-31.

 
Web www.patentalert.com

< (none)

< Synthetic porous crystalline material ITQ-13, its synthesis and use

> Synthetic porous crystalline material ITQ-12, its synthesis and use

> (none)

~ 00049