Patent ID: 8003074

Claim:
A process for producing ZSM-48, the process comprising: (a) providing an aqueous reaction mixture comprising at least one source of silica, at least one source of alumina, at least one source of hydroxyl ions, at least one source of diquaternary alkylammonium, R 2+ , ions having the formula: (CH 3 ) 3 N + (CH 2 ) 5 N + (CH 3 ) 3 and optionally seed crystals, wherein said reaction mixture has a composition including the following molar ratios: R 2+ :SiO 2 from about 0.01 to about 0.05 SiO 2 :Al 2 O 3 from about 50 to less than 100 OH:SiO 2 from about 0.1 to about 0.2; and (b) crystallizing said reaction mixture under conditions effective to produce said ZSM-48.