Basf Aktiengesellschaft

Basf Se Corporation

Stefan Berg

Peter Zehner

Michael Nilles

Joaquim Henrique Teles

Marc Heider

Kai Gumlich

Ralf Schulz

Martin Schäfer

Regina Benfer

Martin Schmidt-Radde

Steffen Oehlenschläger

Klaus Bittins

Hans-Peter Schildberg

Tilo John

Dieter Stützer

Stephan Lamm

Jochen Kellenbenz

Jörn Müller

Kurt Josef Wagner

The invention relates to a process for oxidizing at least one organic substance with oxygen, which comprises the following steps: The invention further relates to an apparatus for performing the process.

Process and apparatus for oxidizing organic compounds

A reactor () of high cylindrical construction for continuously carrying out gas-liquid, liquid-liquid or gas-liquid-solid reactions, provided with a downward-directed jet nozzle () via which the starting materials and the reaction mixture are fed in and which is located in the upper region of the reactor, and provided with an offtake (), preferably in the lower region of the reactor, via which the reaction mixture is conveyed via an external circuit back to the jet nozzle () by means of a pump (P), wherein a guide tube () which extends essentially over the total length of the reactor () with the exception of the reactor ends and has a cross-sectional area in the range from one tenth to one half of the cross-sectional area of the reactor () is located concentrically in the reactor (), and the jet nozzle () is located above the upper end of the guide tube (), preferably at a distance of from one eighth of the guide tube diameter to one guide tube diameter, or projects into the guide tube () to a depth up to a plurality of guide tube diameters is proposed. A heat exchanger, in particular a heat exchanger having heat exchange tubes (), preferably running parallel to the guide tube, welded in between plates (), is integrated into the annular space.

Reactor for carrying out gas-liquid, liquid, liquid-liquid or gas-liquid-solid chemical reactions

Process for carrying out gas/liquid reactions at from (-50.degree.) to 300.degree. C. and from 0.1 to 100 bar by carrying out the reaction in the absence of a continuous gas phase, and, as a special case, a process for the batchwise reaction of acetylene in the liquid phase at from 0.degree. to 300.degree. C. and from 2 to 30 bar, in which acetylene is introduced a) in the absence of a continuous gas phase and b) under isobaric conditions to a degree of saturation of from 5 to 100%.

Process for carrying out gas/liquid reactions under avoidance of a

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Frankenthal, Germany

Stefan Berg