Bayer Aktiengesellschaft

Covestro Deutschland Ag

Florian Lipski

Johan Vanden Eynde

Kaspar Hallenberger

Ricarda Leiberich

Karl-Heinz Köhler

Gabriel Denecker

Lars Frye

Henning Kahnis

Korbinian Krämer

Yasar Guendogan

Weerachanan Somhom

Reinhard Engelstaedter

Gerhard Monscheuer

Oliver Reinold

Ulrich Liesenfelder

Carsten Conzen

Karl-Robert Boos

Dietmar Günther

Karl-Hermann Koeching

Nicolai Krasberg

Stefan Schmitz

Carsten Meyer

Ingo Steinmeister

Wolfgang Güdel

Karl-Heinz KÖHLER

Yasar GÜNDOGAN

Reinhard ENGELSTÄDTER

A holding stand for a multicoupling for filling and/or emptying a chemical plant container is provided, having a mounting device for the essentially stationary fastening of the holding stand and at least one compensating device, couplable indirectly or directly to the multicoupling, for varying a position of the multicoupling in relation to the mounting device in the vertical direction and/or in the horizontal direction and/or for varying an angular position of the multicoupling in relation to the mounting device about a vertical and/or horizontal axis of rotation. It thereby becomes possible for a multicoupling to be coupled simply.

Retaining frame for a multicoupling for filling and/or draining a chemical plant container

The invention concerns a method for producing diaryl carbonates from monophenols and phosgene or chloroformic acid aryl esters in the presence of at least one optionally substituted pyridine or the hydrochloride salt thereof as catalyst, and the recovery and reinjection thereof back into the method. The method is carried out at least partially in a liquid phase without the use of an additional solvent, the catalyst being separated by means of distillation and recovered.

Method for producing diaryl carbonates

The invention concerns a method for producing diaryl carbonates from monophenols and phosgene or chloroformic acid aryl esters in the presence of an optionally substituted pyridine or the hydrochloride salt thereof as catalyst, and the recovery and reinjection thereof back into the method. The method is carried out at least partially in a liquid phase without the use of an additional solvent, the catalyst being separated by means of crystallization and recovered.

Processing unit for assisting and/or performing a processing basic operation for a chemical reaction, with an operating unit for preparing a contribution for the processing basic operation and a frame for accommodating the operating units, the frame having an extension din the longitudinal direction which corresponds substantially to an integral multiple Zof an integral portion Nof an extension L, in the longitudinal direction of an interior of a standard transport container, in accordance with DIN ISO 668, and/or the frame having an extension din the transverse direction with corresponds substantially to an integral multiple Zof an integral portion Nof an extension Lin the transverse direction of an interior of a standard transport container, in particular in accordance with DIN ISO 668, wherein different processing units can be stored in a pool for different processing basic operations and be assembled in modular and flexible manner in the standard transport container for the synthesis of a given chemical product.

Processing unit and use of a plurality of processing units

The present application relates to a method for the continuous production of diaryl carbonate from phosgene and of at least one monohydroxy compound (monophenol) in the presence of catalysts, and to the use thereof for the production of polycarbonates.

Method for producing diaryl carbonate

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Ratingen, Germany

Florian Lipski