Patent ID: 6849248

Claim:
A porous crystalline material with a chemical composition X 2 O 3 :nYO 2 :mZO 2 wherein (n+m) is at least 5, X is a trivalent element, Z is Ge, Y is at least one tetravalent element other than Ge, and the ratio of m/(n+m) is between 0.0 and 0.5 said material having, in its calcined form, an X-ray diffraction pattern whose most characteristic diffraction peaks appear at values substantially coincident with Relative d(±0.3 Å) Intensity 13.64 vs 7.87 vs 4.82 w 4.55 m 4.11 m 3.41 m wherein d are interplanar spaces d in Ångstrom and the relative intensity of the lines is calculated as a percentage with respect to the most intense peak, with vs being a very strong relative intensity of 80-100, m being a medium relative intensity of 40-60, and w being a weak relative intensity of 20-40.