Mixed metal oxide catalysts and processes for their...

Details Mixed metal oxide catalysts and processes for their... Mixed metal oxide catalysts and processes for their...

2011-03-22

2011-03-22

Oh, Taylor Victor (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

C562S544000

Reexamination Certificate

active

07910772

ABSTRACT:
A catalyst for the oxidation of an alkane, alkene or mixtures thereof. The catalyst includes a mixed-metal oxide having the formula MoaVbNbcTedSbeOfwherein, when a=1, b=0.01 to 1.0, c=0.01 to 1.0, d=0.01 to 1.0, e=0.01 to 1.0, and f is dependent upon the oxidation state of the other elements, the catalyst further characterized by having at least two crystal phases, the first crystal phase being an orthorhombic M1 phase and the second crystal phase being a pseudo-hexagonal M2 phase, the orthorhombic M1 phase present in an amount between greater than 60 weight percent to less than 90 weight percent. The catalysts disclosed herein exhibit a chemisorption of NH3of less than about 0.2 mmole per gram of metal oxide.

REFERENCES:
patent: 0529853 (1992-07-01), None

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