| 摘要 |
Crystalline molecular sieves having three-dimensional microporous framework structures of MO2, AlO2, SiO2 and PO2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula: mR : (MwAlxPySiz)O2 wherein "R" represents organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (MwAlxPySiz)O2; "M" represents at least two different elements selected from the group consisting of arsenic, beryllium, boron, chromium, cobalt, gallium, germanium, iron, lithium, magnesium, manganese, titanium, vanadium and zinc; and "w", "x", "y" and "z" represent the mole fraction of elements "M", aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is disclosed. |
