Metal silicate compositions and catalysts
AssigneeBoard of Regents, The University of Texas System
InventorsKenneth J. Balkus, Jr., Alexei G. Gabrielov
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Abstract
A high silica zeolite (UTD-1) using bis(pentamethyl-cyclopentadienyl)cobalt(III) hydroxide, Cp*.sub.2 CoOH is disclosed. UTD-1 is a large pore molecular sieve having one dimensional channels running in parallel. The synthesis and characterization of silicates incorporating titanium, vanadium, aluminum or boron in the silicate framework is described. Calcined Ti-UTD-1 containing cobalt oxide and the cobalt free molecular sieves are shown to be effective oxidation catalysts. Oxidation of alkanes with hydrogen peroxide and t-butylhydroperoxide (t-BHP) and the room temperature oxidation of cyclohexane to adipic acid are demonstrated.
Claims28
A metal microcrystalline silica molecular sieve composition comprising a high silica zeolite UTD-1 molecular sieve having parallel channels with a nominal pore diameter greater than about 7.2 A and which incorporates a metal into the zeolite framework wherein said composition functions as a catalyst.
A metal microcrystalline silica molecular sieve having a nominal pore diameter greater than about 7.2 A that incorporates a bis(pentamethylcyclopentadienyl)cobalt (III) ion as a guest molecule and that as synthesized exhibits an x-ray powder diffraction pattern as set forth in Table 13.
Dependencies are inferred from the claim text.