Removal of 1,4-dioxane from aqueous alkyl polyglycol ether sulphate solutions by means of molecular sieve

摘要

The invention relates to a process for the removal of 1,4-dioxane from alkoxylation products, which is characterised in that the alkoxylation products are treated with crystalline hydrophobic silicon compounds which have uniform pore sizes of approximately 0.6 nm (molecular sieves).