METHOD FOR THE PREPARATION OF POLYETHER ALCOHOLS HAVING A LOW METAL ION CONTENT

The invention relates to a process for preparing polyether alcohols by reacting one or more alkylene oxides having one or more H-functional starting substances in a continuous reactor that comprises flow channels, at a temperature of 180° C. to 250° C. and a pressure of 60 to 150 bar in the presence...

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Bibliographische Detailangaben
Hauptverfasser:	LAUBER, MARKUS, WACHSEN, OLAF, LANGE, THOMAS, BRAND, STEFAN, VYBIRAL, REINHARD, KLEMM, ELIAS
Format:	Patent
Sprache:	eng ; pol
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The invention relates to a process for preparing polyether alcohols by reacting one or more alkylene oxides having one or more H-functional starting substances in a continuous reactor that comprises flow channels, at a temperature of 180° C. to 250° C. and a pressure of 60 to 150 bar in the presence of a basic, metal-containing catalyst, wherein the concentration of the catalyst, based on the total amount of reaction mixture of alkylene oxide, H-functional starting substance and catalyst, is no more than 50 ppm by weight, and the residence time of the reaction mixture in the reactor is 15 to 120 minutes.