Montedipe S.p.a.

Giorgio R Tauszik

Paolo Roffia

Giuseppe Paparatto

Alberto Cesana

Maria Angela Mantegazza

Mario Padovan

Giordano De Alberti

Giuseppe Leofanti

The invention relates to a process of producing ketoximes, characterized in that a secondary alcohol, corresponding to the desired ketoxime, is partially oxidated in the liquid phase with O.sub.2, an oxidated mixture being thereby formed, which contains an excess of unreacted alcohol, the ketone corresponding to said alcohol, and H.sub.2 O.sub.2, and that said oxidated mixture is directly reacted with NH.sub.3 in the liquid phase (without isolating the alcohol, the ketone and H.sub.2 O.sub.2) in the presence of an ammoximation catalyst.

Process of producing ketoximes

The invention concerns a catalytic process for the manufacture of oximes by reaction, in the liquid phase, of the corresponding carbonylic compounds with NH.sub.3 and H.sub.2 O.sub.2, in which process the catalyst is substantially consisting of a crystalline material with a zeolitic structure containing silicon and titanium, subjected, before use, to an activating treatment with H.sub.2 O.sub.2.

Catalytic process for the manufacture of oximes

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Milan, Italy

Giorgio R Tauszik