Basf Se Corporation

Beatrice Röβler-Feigel

Joaquim Henrique Teles

Christian Müller

Dieter Baumann

Anton Meier

Alexander Hauk

Michael Schelper

Tanja Kirchner

Susanne Szeschkus

Rolf Pinkos

Wolfgang Rohde

Wilhelm Ruppel

Ulrike Wegerle

Stefan Bitterlich

Gerd-Dieter Tebben

Wolfgang Gerlinger

Hans-Guenter Wagner

Peter Resch

Qiang Miao

Gauthier Luc Maurice Averlant

In a process for the cooligomerization of olefins, an olefin starting material comprising olefins having n carbon atoms and olefins having 2n carbon atoms is reacted over an olefin oligomerization catalyst to give a reaction product. The process is carried out under such conditions that the conversion of olefins having 2n carbon atoms is less than 10%. Both the cooligomer having 3n carbon atoms and the olefin having 2n carbon atoms which has been separated off from the reaction product have a high hydroformylatability.

Process for the cooligomerization of olefins

The invention relates to a tube bundle reactor with a flat feed hood. Alternatively, the release hood may also have a flat design. The flat design reduces the heat of reaction which arises in the hood in the case of reaction types which take place not only in the tube bundle (uncatalyzed reactions and reactions with homogeneously distributed catalyst). This greatly suppresses undesired reactions which already take place in the hood owing to accumulated heat, which achieves a higher selectivity in the case of thermally sensitive reactions. In addition, the thermal distribution within the hoods can be controlled precisely. The tube bundle reactor comprises a tube bundle which has a feed end which is connected to a feed hood of the tube bundle reactor, wherein the feed hood is configured in a flat design with a cross-sectional area at the feed end and an internal volume, and the ratio of internal volume to cross-sectional area is less than 0.35 m. The invention is further implemented by means of a process for operating a tube bundle reactor, comprising: introducing a reactant mixture into a tube bundle and converting at least a proportion of the reactant mixture within the tube bundle to a product. The introducing comprises: feeding the reactant mixture into an interior of a feed hood of the tube bundle reactor and passing the reactant mixture on into a feed end of the tube bundle in the form of a fluid stream. The fluid stream has a cross-sectional area on entry into the feed end, and the interior of the feed hood through which the fluid stream flows has an internal volume; where the ratio of internal volume to cross-sectional area is less than 0.35 m.

Tube bundle reactor for uncatalyzed or homogeneously catalyzed reactions

The present invention relates to a process for purifying a gas mixture comprising dinitrogen monoxide, at least comprising the treatment of a gas mixture G-0 comprising dinitrogen monoxide to obtain a gas mixture G-A, at least comprising the absorption of the gas mixture G-0 in a solvent mixture S-I to obtain an offgas stream and a composition C-A, and the desorption of a gas mixture G-1 from the composition C-A to obtain a solvent mixture S-I', subsequent condensation of the gas mixture G-A to obtain a liquid composition C-1 comprising dinitrogen monoxide and a gaseous mixture G-K, wherein the gaseous mixture G-K is recycled into the process.

Process for purifying N2O

The present invention relates to a process for purifying a gas mixture comprising dinitrogen monoxide, at least comprising the at least partial condensation of a gas mixture G-I comprising dinitrogen monoxide to obtain a liquid composition C-1 comprising dinitrogen monoxide, and the contacting of the composition C-1 with a gas mixture M-1 to obtain a composition C-2 and a gas mixture M-2.

Process for purifying dinitrogen monoxide

The present invention relates to a process for preparing at least one compound with Z&#x2212;1 cycles and 7 to 16 carbon atoms with at least one aldehyde group, at least comprising the stages:

Process for the isolation of dodecatrienal and its use as aroma substance

The present invention relates to a process for preparing at least one cyclic compound with Z cycles and 7 to 16 carbon atoms with a keto group, at least comprising the stages:

Process for preparing pure cyclododecanone

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Weisenheim am Sand, Germany

Beatrice Röβler-Feigel