Synthesis of monoethers of sugar comprising a long alkyl chain and uses thereof as a surfactant
申请人:TEREOS STARCH & SWEETENERS BELGIUM
公开号:US10442830B2
公开(公告)日:2019-10-15
A process for obtaining a mixture of C4-C8 and C9-C18 alkyl monoether of saccharide, comprising: a) a first step of acetalization or trans-acetalization of a saccharide or of a mixture of saccharides with a C4-C8 aliphatic aldehyde or the acetal thereof, b) a second consecutive or simultaneous step of acetalization or trans-acetalization of the product obtained in a) of the saccharide or mixture of saccharides with a C9-C18 aliphatic aldehyde or the acetal thereof, c) a step of catalytic hydrogenolysis of the saccharide acetals obtained, and d) a step of recovery of a mixture of C4-C8 and C9-C18 alkyl saccharide monoethers. The invention further relates to a mixture of C4-C8 and C9-C18 alkyl saccharide monoethers and the use thereof as a surfactant.
一种获得 C4-C8 和 C9-C18 烷基单醚糖混合物的工艺,包括a) 第一步将糖或糖混合物与 C4-C8 脂肪族醛或其缩醛进行缩醛化或反缩醛化; b) 第二步连续或同时将 a) 中得到的糖或糖混合物产物与 C9-C18 脂肪族醛或其缩醛进行缩醛化或反缩醛化、c) 对得到的糖醛进行催化氢解,以及 d) 回收 C4-C8 和 C9-C18 烷基糖单乙醚混合物。本发明还涉及一种 C4-C8 和 C9-C18 烷基糖单醚混合物及其作为表面活性剂的用途。