METHOD OF MANUFACTURING M41S FAMILY MOLECULAR SIEVE

摘要

This disclosure relates to method for synthesizing a composition of matter comprising an inorganic, porous crystalline phase material having, after calcination, a substantially hexagonal arrangement of substantially uniformly- sized pores having mean diameters of at least about 13 Angstrom Units and exhibiting a substantially hexagonal electron diffraction pattern that can be indexed with a d1Oo value greater than about 18 Angstrom Units, the method comprising: preparing a mixture capable of forming the composition of matter, the mixture comprising sources of one or a combination of oxides of elements selected from the group consisting of divalent element W, trivalent element X, tetravalent element Y and pentavalent element Z, an organic directing agent (R) and a solvent, wherein at least a portion of the solvent comprises at least one recycle liquid produced during at least one previous process for the manufacture of the composition of matter; (a) maintaining the mixture under sufficient conditions of pH, temperature and time for formation of the composition of matter; (b) separating the composition of matter.