拟溶胶化混合技术对癸基糖苷合成的影响  

Influence of Imitating Solation Mixing on Synthesis of Decyl Glucoside

作　　者：尚会建[1,2] 赵丹[1] 张少红[1] 张高[1] 郑学明[1] 

机构地区：[1]河北科技大学化学与制药工程学院,河北石家庄050018 [2]天津大学化工学院,天津300072

出　　处：《石油化工》2013年第3期308-311,共4页Petrochemical Technology

摘　　要：以正癸醇和无水葡萄糖为原料,采用拟溶胶化混合技术进行原料混合,在二元复合催化剂的作用下直接合成了癸基糖苷,研究了拟溶胶化混合技术对葡萄糖的平均粒径、反应时间、粗产品颜色、平均聚合度、葡萄糖转化率及癸基单苷收率的影响。实验结果表明,通过拟溶胶化混合改变了原料的接触方式,使其形成一种稳定的类胶体混合物。将质量比为1∶1的正癸醇和葡萄糖进行拟溶胶化混合60 min,此时葡萄糖的平均粒径减小至亚微米级,葡萄糖颗粒的比表面积明显增大,正癸醇与葡萄糖的接触面积增大,有利于苷化反应的进行。在反应温度110℃、催化剂用量为反应物总质量的0.6%、正癸醇与葡萄糖质量比6∶1的条件下进行合成反应,反应时间仅为1.50 h,此时,癸基单苷收率在90%以上。Decyl glucoside was synthesized by the reaction between anhydrous glucose and decyl alcohol with a binary composite catalyst. An imitating solation mixing technology was adopted for changing the contact way of the reactants and then a colloidal-like mixture formed. The effects of imitating solation mixing on the average particle size of glucose, reaction time, glucose conversion, crude product color, average degree of polymerization and decyl single glucoside yield were studied. When the reactants with the mass ratio of decyl alcohol to anhydrous glucose 1 ： 1 were treated by the imitating solation mixing for 60 min, the average particle size of the glucose was reduced to submicron and its specific surface area increased significantly, which was more advantageous to the reaction. Under the conditions of the reaction temperature 110 ℃, catalyst dosage 0.6%（based on the total mass of the reactants）, mass ratio of decyl alcohol to glucose 6 ： 1 and reaction time 1.50 h, the decyl single glucoside yield was more than 90%.

关 键 词：表面活性剂 癸基糖苷 正癸醇 葡萄糖 拟溶胶化混合技术 

分 类 号：TQ423[化学工程]