Patent ID: 7208137

Claim:
An essentially boron-free zeolite the IFR crystal structure and having a composition, as synthesized and in the anhydrous state, in terms of mole ratios as follows: YO 2 /Al 2 O 3 about 15 to about 90 Z/YO 2 about 0.04 to about 0.08 M 2/n /YO 2 about 0.01 to about 0.05 wherein Y is silicon, germanium or a mixture thereof; M is an alkali metal cation, alkaline earth metal cation or mixtures thereof; n is the valence of M; and Z is a 1-benzyl-4-aza-1-azonia-bicyclo[2.2.2]octane cation, wherein the zeolite does not contain fluorine.