负载型磷钨酸催化剂催化大豆油环氧化的性能研究  

Performance of Supported Phosphotungstic Acid Catalyst for Epoxidation of Soybean Oil

作　　者：莫斯敏 程谦伟[1] 韦潇丽 孟陆丽[1] 陈通 明高 Mo Simin;Cheng Qianwei;Wei Xiaoli;Meng Luli;Chen Tong;Ming Gao(College of biological and chemical engineering,Guangxi University of Science and Technology,Liuzhou 545006;College of Mechanical Engineering,Liuzhou Institute of Technology,Liuzhou 545000)

机构地区：[1]广西科技大学生物与化学工程学院,柳州545006 [2]柳州工学院机械工程学院,柳州545000

出　　处：《中国粮油学报》2023年第10期146-152,共7页Journal of the Chinese Cereals and Oils Association

基　　金：广西自然科学基金项目(2020GXNSFAA159101)。

摘　　要：环氧植物油是具有前景的绿色增塑剂。为提高环氧化效率,采用共沉淀-浸渍法制备了一系列负载不同金属氧化物固体酸催化剂,通过XRD、FT-IR、SEM-EDX等手段对催化剂进行表征,以双氧水为氧供体、甲酸为氧载体,将制备的催化剂应用到大豆油环氧化反应。研究表明,在WO 3-SnO 2-ZrO 2/HPW用量为1.0%、n(C=C)∶n(H 2 O 2)∶n(HCOOH)=1∶2.8∶1.2、反应温度为60℃、搅拌速率为350 r/min、反应时间为3 h的条件下,大豆油的环氧值相对转化率可达到87.21%,且经5次使用后仍保持较好的催化性能。Epoxy vegetable oil is a promising green plasticizer.In order to improve the epoxidation efficiency,a series of solid acid catalysts supported by different metal oxides were prepared by co-precipitation and impregnation method.The catalysts were characterized by XRD,FT-IR and SEM-EDX.The prepared catalysts were applied to soybean oil epoxidation reaction with hydrogen peroxide as oxygen donor and formic acid as oxygen support.The results indicated that,under the conditions of WO 3-SnO 2-ZrO 2/HPW dosage of 1.0%,n(C=C)∶n(H 2O 2)∶n(HCOOH)=1∶2.8∶1.2,reaction temperature of 60℃,stirring rate of 350 r/min and reaction time of 3 h,the relative conversion of oxirane of soybean oil could reach 87.21%.

关 键 词：大豆油 环氧化 固体酸 催化 增塑剂 

分 类 号：TS224.8[轻工技术与工程—粮食、油脂及植物蛋白工程] TQ645.1[轻工技术与工程—食品科学与工程]