Stamicarbon B.v.

Dsm N.v.

Ludovicus H Janssen

Ubaldus F Kragten

Paul C Van Geem

Henricus A Baur

Theodorus F De Graaf

Peter Hoogendoorn

The invention relates to a process for preparing an alkanone and/or alkanol by oxidizing an alkane with 3-30 C-atoms, using oxygen, to form an alkyl hydroperoxide, followed by a decomposition of the resulting alkyl hydroperoxide in the presence of a metal compound immobilized on a carrier, which carrier carries aliphatic or aromatic amine groups or sulphide groups. The process is preferably applied to cycloalkanes.

Process for preparing an alkanone and/or alkanol

The invention relates to the preparation of a benzaldehyde by hydrogenation of a corresponding benzoic acid in the gas phase in the presence of a manganese containing catalyst on an acid carrier. The invention is characterized in that use is made of a catalyst prepared by:

Process for the preparation of benzaldehyde in the gas phase

A method for the preparation of an alkyl benzene by dehydrogenation of the corresponding alkenyl cyclohexene in the presence of carrier borne noble metal catalyst wherein a non-acidic material is used as the catalyst carrier and the reaction is initially conducted at a lower temperature for a period of time and subsequently at a higher temperature.

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Geleen, Netherlands

Ludovicus H Janssen