초록 ▼

The present invention is directed to a large-pore aluminosilicate molecular sieve comprising alumina and silica, where the ratio of SiO.sub.2 /Al.sub.2 O.sub.3 ranges from about 75 to 600, and its method of preparation. The large-pore aluminosilicate molecular sieve of the present invention has the

The present invention is directed to a large-pore aluminosilicate molecular sieve comprising alumina and silica, where the ratio of SiO.sub.2 /Al.sub.2 O.sub.3 ranges from about 75 to 600, and its method of preparation. The large-pore aluminosilicate molecular sieve of the present invention has the ability to catalyze reactions involving particularly bulky transition states or large molecules.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method of preparing an aluminosilicate molecular sieve that comprises alumina and silica in a ratio of SiO.sub.2 /Al.sub.2 O.sub.3 ranging from about 75 to 600, said molecular sieve having an x-ray diffraction pattern that includes at least the d-spacing lines set for

[ What is claimed is:] [1.]1. A method of preparing an aluminosilicate molecular sieve that comprises alumina and silica in a ratio of SiO.sub.2 /Al.sub.2 O.sub.3 ranging from about 75 to 600, said molecular sieve having an x-ray diffraction pattern that includes at least the d-spacing lines set forth in Table 1, said method comprising the step of(1) combining water, a source of hydroxide ions, a source of alumina, a source of [(Cp*).sub.2 Co] ions and a source of silica in the following ratios:H.sub.2 O/SiO.sub.2 =20 to 80Na.sup.+ /SiO.sub.2 =0 to 0.2OH.sup.- /SiO.sub.2 =0.1 to 0.3[(Cp*).sub.2 Co]/SiO.sub.2 =0.05 to 0.2SiO.sub.2 /Al.sub.2 O.sub.3 =75 to 600and (2) crystallizing the aluminosilicate molecular sieve for about 2 to 50 days and at a temperature of from about 150 to 200.degree. C.