摘要
提出了无溶剂法合成非离子表面活性剂——蔗糖脂肪酸酯的工艺流程、操作条件和精制方法。该工艺流程以高级脂肪酸为原料,经与甲醇反应制得脂肪酸甲脂,然后在催化剂存在下与蔗糖于130~140℃、0.01MPa条件下进行酯交换反应,直接合成蔗糖脂肪酸酯;粗产品经盐水洗涤后得到质量分数为53.43%的蔗糖酯产品,其中单酯32.8%,双脂35.5%,三酯31.7%,产品再经有机溶剂处理,可将总蔗糖酯质量分数提高到91.62%。收率49.83%(以甲酯计)。
The present paper relates to a process for obtaining SE( sugar fatty acid esters)from methyl ester of aliphatic acid, which is prepared by the reaction between a higher fatty acid and a methyl alcohol, and sucrose in the presence of catalyst. In this process a few surfactants is utilized as promoter, instead of using any solvent as reaction medium. The quality indexes of product accord with GB10617 - 89.
出处
《广东工业大学学报》
CAS
2003年第2期81-83,共3页
Journal of Guangdong University of Technology