粮食与油脂
糧食與油脂
양식여유지
CEREALS & OILS
2014年
7期
43-47
,共5页
万分龙%滕英来%汪勇%李爱军%张宁
萬分龍%滕英來%汪勇%李愛軍%張寧
만분룡%등영래%왕용%리애군%장저
强酸性阳离子交换树脂%聚甘油%缩水甘油%非均相催化
彊痠性暘離子交換樹脂%聚甘油%縮水甘油%非均相催化
강산성양리자교환수지%취감유%축수감유%비균상최화
strongly acidic cationic exchange resin%polyglycerol%glycidol%heterogeneous catalysis
生物柴油产业的发展提供了大量潜在廉价甘油副产品。甘油可制备低聚甘油,应用于食品、化妆品、医药、日化等领域。该文以甘油和缩水甘油为原料,在强酸性阳离子交换树脂催化作用下合成低聚甘油。通过正交试验优化反应参数,研究反应温度、反应时间、催化剂种类及用量、底物摩尔比(甘油与缩水甘油摩尔比)对低聚甘油产量的影响。得到最优反应条件为:反应温度110℃、反应时间3 h、催化剂用量3 wt%(占底物总质量)、底物摩尔比1∶2。在此条件下低聚甘油的平均产率为69.22%。利用分子蒸馏对产物进行纯化,得到93.07%的高纯度低聚甘油产品。
生物柴油產業的髮展提供瞭大量潛在廉價甘油副產品。甘油可製備低聚甘油,應用于食品、化妝品、醫藥、日化等領域。該文以甘油和縮水甘油為原料,在彊痠性暘離子交換樹脂催化作用下閤成低聚甘油。通過正交試驗優化反應參數,研究反應溫度、反應時間、催化劑種類及用量、底物摩爾比(甘油與縮水甘油摩爾比)對低聚甘油產量的影響。得到最優反應條件為:反應溫度110℃、反應時間3 h、催化劑用量3 wt%(佔底物總質量)、底物摩爾比1∶2。在此條件下低聚甘油的平均產率為69.22%。利用分子蒸餾對產物進行純化,得到93.07%的高純度低聚甘油產品。
생물시유산업적발전제공료대량잠재렴개감유부산품。감유가제비저취감유,응용우식품、화장품、의약、일화등영역。해문이감유화축수감유위원료,재강산성양리자교환수지최화작용하합성저취감유。통과정교시험우화반응삼수,연구반응온도、반응시간、최화제충류급용량、저물마이비(감유여축수감유마이비)대저취감유산량적영향。득도최우반응조건위:반응온도110℃、반응시간3 h、최화제용량3 wt%(점저물총질량)、저물마이비1∶2。재차조건하저취감유적평균산솔위69.22%。이용분자증류대산물진행순화,득도93.07%적고순도저취감유산품。
The boost of biodiesel industry provides a large amount of potentially inexpensive glycerol byproduct,which can further be used to prepare oligomerized polyglycerol for applications in food, cosmetics,medicine,daily chemistry etc. Here the synthesis of oligomerized polyglycerol was investigated using strongly acidic cationic exchange resin by ring-opening reaction of glycidol with glycerol. The reaction conditions studied include temperature,time,type and amount of catalysis,and the molar ratio of glycerol to glycidol. Orthogonal test was applied to optimize the reaction parameters, and the optimum conditions were 110 ℃,3 h of reaction time,3 wt%(of the substrates mass)of the catalysis dosage and 1∶2 of the molar ratio of glycerol to glycidol. Under these conditions,the average yield was 69.22%. With a further purification by molecular distillation,the oligomerized polyglycerol product obtained achieved a purity of 93.07%.