Basf Aktiengesellschaft

Abbott Gmbh & Co Kg

Guido Harms

Gerd Kaibel

Hagen Jaedicke

Horst Hartmann

Harald Laas

Bernd Schaefer

Hermann Ascherl

Wolfram Burst

Georg Arnold Krei

Joanna Linda Von Dem Bussche-H&uuml;nnefeld

A dividing wall column is described which includes the following segments: a) an upper column region (), b) an enrichment section () of the feed section, c) a stripping section () of the feed section, d) an upper part () of the offtake section, e) a lower part () of the offtake section, f) an intermediate region () of the feed section, g) an intermediate region () of the offtake section and h) a lower column region (). The dividing wall column has a dividing wall () is located vertically between the segments b) () and d) () and between the segments c) () and e) (). The segments b) (), d) (), c) () and e) () have separation-active internals, Segment b () has a cross-sectional area Awhich is at least 10% smaller than the cross-sectional area Aof segment d) (), and segment c) has a cross-sectional area Awhich is at least 10% greater than the cross-sectional area Aof segment e) ().

Dividing wall column for fractionation of a multicomponent mixture

Spray drying of thrombin inhibitors

Preparation of tocopheral carboxylates or tocotrienyl esters by acid-catalyzed reaction with carboxylic acids

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Limburgerhof, Germany

Guido Harms