Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1981-01-30
1982-07-27
Niebling, John F.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568376, 568573, 568570, 568575, 568821, 568836, C07C 4500, C07C 712
Patent
active
043419070
ABSTRACT:
A process is disclosed for the catalytic oxidation of a cycloparaffin, e.g., cyclohexane, to partial oxidation products thereof, especially for the production of mixtures of cycloalkanols and cycloalkanones. In the process, molecular oxygen, usually in the presence of an inert gas, is introduced into the cycloparaffin at elevated pressure and a temperature of 130.degree.-180.degree. C., in the presence of an oxidation catalyst comprising a heavy metal compound along with an N-heterocyclic compound. The heavy metal of the heavy metal compound may be cobalt, vanadium, manganese, copper, iron or nickel. The heavy metal compound may have ligands of alkanoate, dialkylphosphate, dicycloalkylphosphate or alkylcycloalkylphosphate. The N-heterocyclic compound may be dipyridyl, pyrimidine, pyrazine, pyridine and pyridine substituted with --CN, --R, and/or --OR where R is alkyl. A preferred catalyst is cobalt bis[di(2-ethylhexyl)phosphate] in combination with pyridine.
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Du Pont Canada Inc.
Niebling John F.
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