Alkyl glycoside hydroxylpropyl sulfonate and preparation method thereof

一种烷基糖苷羟丙基磺酸盐及其制备方法

Abstract

本发明涉及表面活性剂的合成领域,具体是一种烷基糖苷羟丙基磺酸盐的制备方法,包括以下步骤:A、将环氧氯丙烷和亚硫酸氢钠投入反应器,在水相环境中,环氧氯丙烷开环发生加成反应;反应结束后,得到3-氯-2-羟基丙基磺酸钠中间体水溶液;B、将3-氯-2-羟基丙基磺酸钠中间体和烷基糖苷水溶液投入反应器,在液碱催化剂存在的条件下,发生缩合反应,得到烷基糖苷磺酸盐水溶液。本发明方法工艺简单,操作方便,特别是得到的烷基糖苷磺酸盐不仅具有非离子表面活性剂烷基糖苷的相关性质,同时由于磺酸根离子的引入,使产品的水溶性得到改善,这就解决了长碳链的烷基糖苷的水溶性差及低温易析出等的问题。
The invention relates to the field of synthesis of surface active agents, in particular to a preparation method of alkyl glycoside hydroxylpropyl sulfonate. The method includes the following steps of A, putting epoxy chloropropane and sodium hydrogen sulfite in a reactor, conducting loop opening and addition reaction on epoxy chloropropane in the water-phase environment, and obtaining a 3-chloro-2-hydroxylpropysodium sulfonate intermediate water solution after reaction ends; B, putting 3-chloro-2-hydroxylpropysodium sulfonate intermediate and an alkyl glycoside water solution in the reactor, and conducting condensation reaction under a liquid alkali catalyst to obtain an alkyl glycoside sulfonate water solution. The method is simple in process and convenient to operate; particularly, obtained alkyl glycoside sulfonate has related properties of non-ion surface active agent alkyl glycoside; meanwhile, due to the introduction of sulfonate radical ions, the water solubility of the product is improved, and the problems that long-carbon-chain alkyl glycoside is poor in water solubility, easy to dissolve at a low temperature and the like are solved.

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