Institute Fuer Troposphaerenforschung E.v.

Institute for Tropospheric Research, a German Non-profit Organization

Jost Heintzenberg

Robert J Charlson

Olaf Boege

Manfred Wendisch

Sabine Wurzler

Torsten Berndt

Frank Stratmann

The invention relates to a new method for producing epoxides by oxidizing olefins in a homogeneous gas phase reaction, wherein ozone and NO and/or NO are reacted with the desired olefin under mild reaction conditions and without a catalyst. The inventive method can be carried out as a continuous, one-step method in a reactor according to FIG. 1, and requires very little technical input. Monoolefins having 2 to 16 carbon atoms and diolefins having 4 to 16 carbon atoms can be epoxidized.

Method for producing epoxides by oxidizing olefins

The present invention relates to a method for investigating the behavior of particles or droplets in a gas-vapor mixture inside a flow device, which is useful for studying cloud dynamical and microphysical processes. The invention allows adjustment and/or control of the thermodynamic system parameters based on the observed behavior of an internal standard with known properties, thus achieving a well-defined vapor concentration and saturation field inside the flow device. By injecting particles or droplets to be investigated into this well defined flow device, and measuring the size of the particles or droplets, the activation and growth or shrinking behavior of the particles or droplets may be determined using a mathematical model of the fluid, thermodynamic, and chemical conditions of the flow device.

Method and apparatus for investigating temporal development of particles or droplets in gas-vapor mixture

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Leipzig, Germany

Jost Heintzenberg