Basf Se Corporation

Basf Aktiengesellschaft

Wintershall Holding Gmbh

Joerg Therre

Hartwig Voss

Nadine Kaltenborn

Rajan Hollmann

Hans Volkmar Schwarz

Ingolf Voigt

David Agar

Hannes Richter

Julia Kristiane Schmidt

Helmut Kronemayer

Jacek Malisz

Christian Schwede

Tillmann Faust

Susanne Kaemnitz

Johannes Felix Haus

Matthias Kruck

Markus Spittler

The use of solutions of organic polymers for production of carbon membranes suitable for gas separation, and a process for producing carbon membranes suitable for gas separation, comprising the steps of a) coating a porous substrate with solutions of organic polymers, b) drying the polyester coating on the porous substrate by removing the solvent, and c) pyrolyzing the polyester coating on the porous substrate to form the carbon membrane suitable for gas separation, it being possible to conduct any of steps a) to c) or the sequence of steps a) to c) more than once.

Process for producing carbon membranes

The use of solutions of ethylenically unsaturated polyesters for production of carbon membranes suitable for gas separation, and a process for producing carbon membranes suitable for gas separation, comprising the steps of a) coating a porous substrate with a solution of ethylenically unsaturated polyester, b) drying the polyester coating on the porous substrate by removing the solvent, and c) pyrolyzing the polyester coating on the porous substrate to form the carbon membrane suitable for gas separation, it being possible to conduct any of steps a) to c) or the sequence of steps a) to c) more than once.

The invention relates to a method of reacting alkyl carboxylate chlorides and/or carboxylic dichlorides dissolved in corresponding diaikyl carboxylates with the corresponding alkanol at temperatures ranging from 60.degree. to 300.degree. C., in which the resultant hydrogen chloride remains in the reaction mixture.

Method of reacting carboxylic chlorides dissolved in carboxylates

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Worms, Germany

Joerg Therre