Process for the preparation of sulfated alkanol oxethylates or alkylphenol oxethylates having a lowered content of 1,4-dioxane

A process for the preparation of sulfated alkanol oxethylates or alkylphenol oxethylates is described. After completion of the reaction with SO3, 0.1 to 0.5% by weight, relative to the alkanol oxethylates or alkylphenol oxethylates employed, of at least one of the following compounds: water, ethanol...

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Bibliographische Detailangaben
Hauptverfasser:	HORST REUNER, GUNTHER MULLER, RAINER MULLER, RUDOLF AIGNER
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ADHESIVES ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMISTRY DETERGENT COMPOSITIONS DETERGENTS DYES FATTY ACIDS THEREFROM MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY PAINTS POLISHES RECOVERY OF GLYCEROL RESIN SOAPS SOAP OR SOAP-MAKING USE OF SINGLE SUBSTANCES AS DETERGENTS
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Beschreibung
Zusammenfassung:	A process for the preparation of sulfated alkanol oxethylates or alkylphenol oxethylates is described. After completion of the reaction with SO3, 0.1 to 0.5% by weight, relative to the alkanol oxethylates or alkylphenol oxethylates employed, of at least one of the following compounds: water, ethanol, 1-propanol, 2-propanol or n-heptane are admixed to the reaction mixture and liquid and gas are subsequently separated at a temperature of 20 DEG to 60 DEG C. The liquid is then neutralized with aqueous alkali as customary and leads to ether sulfate/water mixtures with considerably reduced contents of 1,4-dioxane which can either be used without further aftertreatment or with a considerably reduced outlay in terms of aftertreatment as personal hygiene agents and for various other purposes.