| abstract |
The invention relates to a method for processing base-catalysed alkoxylation products using sulphonic acid ion exchangers, comprising the steps of providing a mixture containing the base-catalysed alkoxylation product to be processed, alcohol with 1 to 4 carbon atoms and water, treating this mixture with a sulphonic acid cation exchanger at >40 °C, and removing the alkoxylation product from the mixture treated in this manner. |