Hydrocarbon conversion utilizing a low-aluminum boron beta zeolite

A process for converting hydrocarbons comprising contacts a hydrocarbonaceous feed at hydrocarbon converting conditions with a zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide, and mixtures thereof to an oxide selected from boron oxide, or mixtures of boron oxide with aluminum oxide, gallium oxide or iron oxide, greater than 10:1 and wherein the amount of aluminum is less than 0.10% by weight and having the X-ray diffraction lines of Table 1(b) or a zeolite having a composition, as synthesized and in the anhydrous state, in terms of mole ratios of oxides as follows:

• (1.0 to 5)Q.sub.2 O:(0.1 to 2.0)M.sub.2 O:W.sub.2 O.sub.3 :(greater than 10) YO.sub.2 wherein M is an alkali metal cation, W is boron, Y is selected from silicon, germanium, and mixtures thereof, Q is a diquaternary ammonium ion and having the X-ray diffraction lines of Table 1(a).