Synthesis of mesoporous crystalline material

Claim 1

In a method for synthesizing a composition of matter comprising an inorganic, porous crystalline phase material having, after calcination, an X-ray diffraction pattern including values substantially as shown in Table 1 which comprises the steps of (1) combining a primary organic directing agent (R'), optional additional organic directing agent (R"), optional source of alkali or alkaline earth metal (M) ions, and a solvent or solvent mixture such that the mole ratio Solvent/(R'.sub.2 O+M.sub.2 O) is from about 45 to less than about 100, (2) adding one or a combination of oxides of tetravalent element Y, and optionally one or a combination of oxides of elements selected from the group consisting of divalent element W, trivalent element X and pentavalent element Z to the mixture of step (1), such that the mole ratio R.sub.2 O/(YO.sub.2 +X.sub.2 O.sub.3 +Z.sub.2 O.sub.5 +WO) is from about 0.3 to about 1, where R is the total of R'+R", (3) agitating the mixture resulting from step (2) at a temperature of from about 0° C. to about 50° C. and a pH of from about 7 to about 14, and (4) crystallizing the product from step (3) at a temperature of from about 50° C. to about 200° C., the improvement wherein Y comprises silicon and the oxide of Y is added as a colloidal dispersion of SiO 2 or a precipitated SiO 2 , ethanol is added to the mixture prior to crystallizing step (4), and wherein the Solvent/(R' 2 O+M 2 O) mole ratio of step (1) is from about 45 to less than about 110.