反应控制相转移催化合成环氧大豆油  

Soybean Oil Epoxide via Reaction-Controlled Phase Transfer Catalysis

作　　者：李坤兰[1] 高爽[2] 奚祖威[2] 

机构地区：[1]大连工业大学化工与材料学院,大连116034 [2]中国科学院大连化学物理研究所

出　　处：《应用化学》2007年第10期1177-1181,共5页Chinese Journal of Applied Chemistry

基　　金：辽宁省教育厅科学技术研究项目(202073424)

摘　　要：以磷钨杂多酸盐作为反应控制相转移催化剂,1,2-二氯乙烷为溶剂,30%H2O2为氧源,研究了中性条件下大豆油的环氧化反应,并考察了各反应条件对环氧化反应的影响。结果表明,在催化剂质量分数为3%,n(H2O2)∶n(双键)=1.2∶1,m(溶剂)/m(大豆油)=3.2,反应温度70℃,反应时间4h时,生成环氧大豆油中的碘值小于0.04g(I)/g,环氧值大于6%,催化剂循环使用5次后不降低催化活性。整个反应过程中,催化剂显示出良好的反应控制相转移催化性能。The epoxidation reaction of soybean oil with 30% hydrogen peroxide and a heteropolyphosphotungstate salt as reaction-controlled phase transfer catalyst, and 1,2-dichloroethane as the solvent under neutral condition was studied. The optimized reaction conditions were 3% （mass fraction） catalyst, molar ratio of H2O2 and soybean oil 1.2： 1, mass ratio of solvent and soybean oil 3.2： 1, reaction temperature 70 ℃, and reaction time 4 h. Under the above mentioned conditions, the epoxy value was higher than 6% , and the iodine value was less than 0. 04 g（ I）/g. The catalyst was recycled five times without losing catalyst activity, showing excellent reaction controlled phase transfer catalyst property.

关 键 词：反应控制相转移催化 大豆油 环氧化 

分 类 号：O623.6[理学—有机化学]