Basf Se Corporation

Cognis IP Management Gmbh

Harald Röβler

Bernhard Gutsche

Joaquin Bigorra Llosas

Javier Raya

Erich Reuter

Magnus Topphoff

Wilhelm Barlage

Provided are processes for making an amide of a carboxylic acid by reacting an amine of the formula (I)H&#x2014;NRR&#x2003;&#x2003;(I)wherein Rand Rare the same or different, Rcomprising a C-C-alkyl, and Rcomprising hydrogen or a C-C-alkyl, the amine having a lower boiling point than water, with a carboxylic acid with at least 3 carbon atoms per molecule, said carboxylic acid optionally comprising at least one alcoholic hydroxyl group per molecule, and selecting a molar ratio of amine to carboxylic acid in the range of from 1.5:1 to 1:1. The reaction step occurs under

Process for making amides

The disclosed invention relates to a countercurrent process for the continuous esterification of C(fatty) acids with Cmonoalkanols, Cdi- or trialkanols or mixtures thereof in the liquid phase in the presence of heterogeneous catalysts in a preliminary reactor () and in a reaction column (), characterized in that the reaction column () is preceded by the preliminary reactor () and a separation unit () for the purpose of reducing the viscosity of the reaction mixture and removing the water of reaction from the system via a separation unit () to displace the reaction equilibrium before the reaction column (). A further aspect of the invention concerns feeding nitrogen in at the lowermost plate of the reaction column () in order to increase the vapor load in the lower part of the reaction column.

Method for producing linear or branched fatty acid esters by means of heterogeneously catalysed reactive rectification with an upstream reactor

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Düsseldorf, Germany

Harald Röβler