Aluminosilicate molecular sieve
AssigneeExxonMobil Oil Corporation
InventorsScott S. Han, David Owen Marler, Louis Deane Rollmann, John L. Schlenker, Suzanne Elaine Schramm, Jeffrey Scott Beck
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Abstract
The present invention is directed to a large-pore aluminosilicate molecular sieve comprising alumina and silica, where the ratio of SiO2/Al2O3 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.
Claims1
A method of preparing an aluminosilicate molecular sieve that comprises alumina and silica in a ratio of SiO2/Al2O3 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*)2Co] ions and a source of silica in the following ratios:
- H2O/SiO2=20 to 80
- Na+/SiO2=0 to 0.2
- OH−/SiO2=0.1 to 0.3
- [(Cp*)2Co]/SiO2=0.05 to 0.2
- SiO2/Al2O3=75 to 600
- and (2) crystallizing the aluminosilicate molecular sieve for about 2 to 50 days and at a temperature of from about 150 to 200° C.
Dependencies are inferred from the claim text.