METHOD FOR PRODUCING POLYETHEROLS FROM ALKYLENE OXIDES

A process for the preparation of polyetherols, comprising the following steps: a) reaction of at least one starter compound with at least one alkylene oxide and a catalyst to give a crude polyetherol and b) removal of low molecular weight byproducts from the crude polyetherol from step a), wherein t...

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Main Authors PALLASCH, HANS-JUERGEN, CHILEKAR, VINIT, SCHWARZ, HANS VOLKMAR, SCHOPOHL, MATTHIAS, OSTROWSKI, THOMAS, MECKELNBURG, DIRK, JOVANOVIC, RENATA, SCHAUS, ECKARD, LOEFFLER, ACHIM, FRIESE, THORSTEN, SZESCHKUS, SUSANNE
Format Patent
LanguageEnglish
French
German
Published 06.06.2012
Subjects
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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Summary:A process for the preparation of polyetherols, comprising the following steps: a) reaction of at least one starter compound with at least one alkylene oxide and a catalyst to give a crude polyetherol and b) removal of low molecular weight byproducts from the crude polyetherol from step a), wherein the crude polyetherol is treated with a stripping gas in a column having internals.
Bibliography:Application Number: EP20100736725