Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1975-03-17
1977-04-19
Douglas, Winston A.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252437, B01J 2714
Patent
active
040187098
ABSTRACT:
A catalyst complex useful for converting normal C.sub.4 hydrocarbons to maleic anhydride in vapor phase comprising as components vanadium, phosphorus, an element selected from the group of U, W, or a mixture of elements from the group Zn, Cr, U, W, Cd, Ni, B or Si.
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patent: 3433823 (1969-03-01), McMahon
patent: 3478063 (1969-11-01), Friedrichsen
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patent: 3862146 (1975-01-01), Boghosian
patent: 3875220 (1975-04-01), White et al.
patent: 3888886 (1975-06-01), Young et al.
Barone Bruno J.
Kerr Ralph O.
Douglas Winston A.
Dry N. Elton
Johnson Kenneth H.
Niebling John F.
Petro-Tex Chemical Corporation
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