Basf Aktiengesellschaft

Stephan Herwig

Thomas Ostrowski

Achim Loeffler

Dirk Meckelnburg

Werner Weinle

Renata Jovanovic

The invention provides a process for continuously preparing polyether alcohols using DMC catalysts, which comprises, in a first step, in a continuous reactor, adding alkylene oxides onto H-functional starter substances and transferring the output of this reactor to a second step in a reactor which is divided by closed trays into mutually separate sections, known as compartments, which are connected to one another by external pipelines, in which the output of the reactor from the first step of the reaction passes through the compartments in succession.

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Hassloch, Germany

Stephan Herwig