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China Surfactant Detergent & Cosmetics ›› 2021, Vol. 51 ›› Issue (1): 17-20.doi: 10.3969/j.issn.1001-1803.2021.01.003

• Development and application • Previous Articles     Next Articles

Effects of preparation conditions on the content of 1,4-dioxane in the product of narrow-distribution sodium fatty alcohol ether sulfate

LI Jian-bo(),YANG Xiao-yi,SUN Yong-qiang,GUO Chao-hua,LI Ping(),REN Xiao-dan   

  1. China Research Institute of Daily Chemistry Co., Ltd., Taiyuan, Shanxi 030001, China
  • Received:2020-04-15 Revised:2020-12-21 Online:2021-01-22 Published:2021-01-20
  • Contact: Ping LI E-mail:yesridci@163.com;yipingli_@126.com

Abstract:

The content of 1,4-dioxane in narrow-distribution sodium fatty alcohol ether sulfate (narrow-distribution AES) was studied by using n(SO3)∶n(narrow-distribution fatty alcohol ether), sulfation temperature, volume fraction of SO3, storage time and neutralization temperature as single-factor variables on a laboratory device of sulfur trioxide falling film sulfation. The results showed that, the content of 1,4-dioxane in narrow-distribution AES would increase with the increase of excess SO3, sulfation temperature, volume fraction of SO3, storage time of narrow-distribution fatty alcohol ether, and neutralization temperature.

Key words: sulfur trioxide, narrow-distribution sodium fatty alcohol ether sulfate, 1,4-dioxane

CLC Number: 

  • TQ423