Basf Aktiengesellschaft

Wolfram Stüer

Michael Röper

Jörg Pastre

Peter Zehner

Otto Machhammer

Rolf-Hartmuth Fischer

Thomas Krug

Jens Scheidel

Tilman Sirch

Andrea Haunert

Hartwig Voβ

Kai Michael Exner

Peter Baβler

Elke Geissler

A process for continuously preparing a compound which bears at least two functional groups which are each independently selected from the group consisting of nitrile group, carboxylic acid group, carboxylic ester group and carboxamide group.

Method for the continuous production of a compound that carries at least two functional groups

Disclosed is a method for jointly producing (i) formic acid (III); (ii) a carboxylic acid comprising at least two carbon atoms (II) and/or the derivatives thereof; and (iii) a carboxylic acid anhydride (VII). According to said method, (a) a formic acid ester (I) is transesterfied to formic acid (III) and the corresponding carboxylic acid ester (IV) by means of a carboxylic acid comprising at least two carbon atoms (II); (b) at least one portion of the carboxylic acid ester (IV) formed in step (a) is carbonylated in order to obtain the carboxylic acid anhydride (V); and (c) at least one portion of the carboxylic acid anhydride (V) formed in step (b) is further dehydrated by means of a carboxylic acid (VI) so as to form a carboxylic acid anhydride (VII) and the carboxylic acid (II).

Flexible method for the joint production of (i) formic acid, (ii) a carboxylic acid comprising at least two carbon atoms and/or the derivatives thereof, and (iii) a carboxylic acid anhydride

The present invention provides a process for preparing 1,6-hexanediol having a purity of &#x2267;99.5% by weight by catalytically dimerizing acrylic esters and catalytically hydrogenating the hexenedioic diesters obtained in this way to 1,6-hexanediol by

Preparation of 1,6-hexanediol

Formic acid and a carboxylic acid having at least two carbon atoms and/or derivatives thereof are prepared jointly by a process in which

Felxible method for the common production of formic acid, a carboxylic acid having at least two carbon atoms, and/or the derivatives of the same

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Mannheim, Germany

Wolfram Stüer