abstract |
A crystalline material having, in the dehydrated form, the empirical formula: n n m(M.sub.2/a O):X.sub.z O.sub.xz/2 :.sub.y YO.sub.2 (I) n n in which m is 0.5 to 1.5; M is a cation of valency a; X is a metal of valency x, selected from aluminium, boron, gallium, zinc, iron and titanium; z is 2 when x is an odd number, and z is 1 when x is an even number; y is at least 5; and Y is silicon or germanium; and having, in the calcined hydrogen form, an X-ray diffraction pattern including significant peaks substantially as shown in Table I herein. The material has been designated SUZ-2, and is used in the conversion of hydrocarbons or oxygenates. |