公开(公告)号：US20250043187A1

公开(公告)日：2025-02-06

申请号：US18920310

申请日：2024-10-18

Applicant: Stepan Company

Inventor： James A. Faunce ,  Dennis S. Murphy ,  Ronald A. Masters ,  Lei Cui ,  Paul W. Knox

IPC: C09K23/02

Abstract: A method of mitigating the formation of 1,4-dioxane and precursors of 1,4-dioxane in alkyl ether sulfate surfactants is disclosed. The method involves adding one or more alcohol, hydrotrope or anti-oxidant additives to an aqueous solution of alkyl ether sulfate surfactant having at least two ethylene oxide groups. The alcohol, hydrotrope, or anti-oxidant is added to the alkyl ether sulfate solution in an amount effective to reduce the formation of diethylene glycol monosulfate, a precursor of 1,4-dioxane, and also reduce the formation of 1,4-dioxane.