Abstract: What is proposed is a continuous process for producing limonene which has the feature that beta-pinene or beta-pinene-containing starting materials are isomerized in a trickle-bed reactor in the presence of acid catalysts.

Abstract: The invention relates to a method for producing terpene aldehydes and terpene ketones by oxidatively dehydrogenating the corresponding terpene alcohols, comprising or consisting of the following steps: (a) providing terpene alcohols or terpene-alcohol-containing reactants; (b) bringing the starting substances from step (a) in contact with a heterogeneous ruthenium catalyst; (c) heating the mixture from step (b) to at least 150° C. in the presence of oxygen; optionally (d) separating the terpene aldehydes or terpene ketones from the obtained reaction mixture.

Abstract: The invention relates to a method for producing terpene aldehydes and terpene ketones by oxidatively dehydrogenating the corresponding terpene alcohols, comprising or consisting of the following steps: (a) providing terpene alcohols or terpene-alcohol-containing reactants; (b) bringing the starting substances from step (a) in contact with a heterogeneous ruthenium catalyst; (c) heating the mixture from step (b) to at least 150° C. in the presence of oxygen; optionally (d) separating the terpene aldehydes or terpene ketones from the obtained reaction mixture.

Abstract: The present invention relates to a method for producing a substituted alkyl cycloalkanone, comprising the alkylation of a cycloalkanone with an alkene derivative in the presence of a metal oxide, where n is 2 to 20, m is 0 to 10, and R is a functional group.

Abstract: The present invention relates to a method for producing a substituted alkyl cycloalkanone of formula (I), having the alkylation of a cycloalkanone of formula (II) with an alkene derivative of formula (III) in the presence of a metal oxide, where n is 2 to 20, m is 0 to 10, and R is a functional group.

Abstract: The invention relates to a method for producing CO2 for attracting bloodsucking arthropods (2). In this method, at least one liquid or solid organic substance (11) is reacted in an oxidation process in a targeted manner, one portion completely and another partially, thus forming, in addition to CO2, H2O and heat, at least one further partial oxidation product (P). The invention further relates to a device (1a, 1b) for generating CO2, said device (1a, 1b) comprising a storage means (10) for at least one liquid or solid organic substance (11) and an evaporation module (14) for the liquid or solid organic substance (11). The device (1a, 1b) comprises a reactor module (16) for the controlled oxidation and partial oxidation of the at least one liquid or solid organic substance (11); a control unit (80); and means (13, 18, 21, 22, 26) for regulating the oxidation and partial oxidation process.

Abstract: The invention relates to an improved catalyst for the synthesis of dimethyl carbonate by reacting methanol, carbon monoxide and oxygen in the gas phase and to the use thereof. The catalyst consists of a copper-containing zeolite produced by admixing one or more halide-free copper(II) compounds to a zeolite in a liquid medium, drying the zeolite modified by the admixture, and tempering at 400-900° C. under inert conditions, essentially retaining the crystallinity of the zeolite, said admixing being effected by means of a method selected from the group consisting of impregnation of the zeolite, ion exchange, precipitation of copper(II) hydroxide in the presence of the zeolite, and a combination of these methods. The catalyst shows high space-time yields, is constant over the period of operation and has no corrosive action.