Milestone S.r.l.

Dsm IP Assets B.v.

Degussa Aktiengesellschaft

Bernd Ondruschka

Werner Bonrath

Martina Ortelt

Peter Denkinger

Werner Andrejewski

Werner Lautenschläger

Werner Freitag

Matthias Nüchter

Peter Scholz

Andreas Berlineanu

Matthias N&uuml;chter

Christine Schmoeger

Werner Lautenschl&auml;ger

Achim Stolle

The present invention is directed to a catalyst comprising palladium on a porous Silica glass as carrier, as well as to the use of such catalyst for the selective hydrogenation of alkines to alkenes.

Selective hydrogenation catalyst comprising palladium on porous silica glass and the use thereof

A devise for carrying out chemical reactions and processes in high-frequency fields, comprises a high-frequency chamberfor irradiating a solid, liquid or gaseous substance while under pressure with at least one radiation source and a reactor for exposing to a high-frequency field. The reactor being connectively coupled to the upper wallof the high-frequency chamberthrough a sealable connection. Rail elementsare provided around the reactor, and configured to form a pressure-resistant cage. The rail elementseach have a guidefor holding a crown-shaped holder. The holderis fixed in its position by the guidesof the rail elements. Multiple reaction chambers can be incorporated as a batch reactor system.

Device for implementing chemical reactions and processes in high frequency fields

An epoxidized polyalkenylene is prepared reacting a polyalkenylene, an aqueous solution of 15 to 90% by volume of hydrogen peroxide and a carboxylic acid having from 1 to 3 carbon atoms in the presence of a catalyst which is phosphonic acid, a derivative of phosphonic acid or a mixture thereof, without addition of an organic solvent or water, to obtain the epoxidized polyalkenylene. The epoxidized polyalkenylene has a number-average molar mass of between 500 and 50 000 g/mol and an epoxide oxygen content of between 1 and 25 percent by mass.

Epoxidized polyalkenylenes and method for their preparation

A magazine-type sample rotation body ( ) is arranged in a high frequency chamber ( ) so that it rotates away from the horizontal, the body ( ) accommodating, in fixed location, reactor blocks ( ) that are sealed or sealable from fluids such that fluids contained in sample vessels in the reactor blocks can be mixed before, during and after high frequency exposure because of the rotational movement of the sample rotation body.

Device for performing multiple chemical reactions and processes in high frequency fields

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Leipzig, Germany

Bernd Ondruschka