Phosphorous/vanadium oxidation catalyst
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United States of America Patent
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Nov 16, 1993
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N/A
app pub date -
Aug 3, 1992
filing date -
May 21, 1990
priority date (Note) -
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Abstract
An improvement in the oxidation catalyst used for the partial oxidation of n-butane and containing vanadium and phosphorus, zinc and lithium mixed oxides which comprises adding a molybdenum compound modifier in an amount of from about 0.005 to 0.025/1 Mo/V to the catalyst during the digestion of the reduced vanadium compound by concentrated phosphoric acid. The addition of Mo produces a catalyst which is very stable more active system and longer lived than the unmodified catalyst.
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