Abstract: A new crystalline borosilicate molecular sieve, boronaaronate, having a composition in terms of mole ratios of oxides:0.9.+-.0.2M.sub.2/n O:B.sub.2 O.sub.3 :ySiO.sub.2 :zH.sub.2 Owherein M is a cation of valence n, y is between 2 and about 700, and z is between 0 and about 200, and having a characteristic X-ray diffraction pattern. The boronaaronate is prepared by reacting under crystallization conditions, in substantial absence of a metal hydroxide, an aqueous mixture containing an oxide of silicon, an oxide of boron, ethylenediamine, and an organic material comprised of a heterocyclic nitrogen-containing aromatic compound or an aliphataic alcohol. Boronaaronate is useful in hydrocarbon conversion processes.

Abstract: A new crystalline borosilicate molecular sieve, boronaaronate, having a composition in terms of mole ratios of oxides:0.9.+-.0.2M.sub.2/n O:B.sub.2 O.sub.3 :ySiO.sub.2 :zH.sub.2 Owherein M is a cation of valence n, y is between 2 and about 700, and z is between 0 and about 200, and having a characteristic X-ray diffraction pattern. The boronaaronate is prepared by reacting under crystallization conditions, in substantial absence of a metal hydroxide, an aqueous mixture containing an oxide of silicon, an oxide of boron, ethylenediamine, and an organic material comprised of a heterocyclic nitrogen-containing aromatic compound or an aliphatic alcohol. Boronaaronate is useful in hydrocarbon conversion processes.