Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1975-10-01
1978-02-21
Douglas, Winston A.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
B01J 2716
Patent
active
040751228
ABSTRACT:
Magnesium nickel pyrophosphate is a superior catalyst for oxydehydrogenating alkyl aromatic compounds including nitrogen heterocyclics which have at least one C.sub.2 -C.sub.6 alkyl side chain to form derivatives having side chain unsaturation. The alkyl aromatic compound can have 1-2 rings. The process is carried out at 450.degree.-650.degree. C. and a space velocity of 55-2500.
REFERENCES:
patent: 2456367 (1948-12-01), Britton et al.
patent: 3935126 (1976-01-01), Vrieland
Friedli Hans R.
Vrieland G. Edwin
Baker Glwynn R.
Bell Mark
Douglas Winston A.
The Dow Chemical Company
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