固载化氯化铝催化材料的制备及性能研究  

Preparation of immobilized AlCl_3 catalytic materials and catalytic properties thereof

作　　者：张秋云 罗丹[1] 吴忠富 马培华 韦复华[1,2] 张玉涛 

机构地区：[1]安顺学院化学化工学院,贵州安顺561000 [2]安顺学院贵州省教育厅功能材料与资源化学特色重点实验室 [3]贵州大学化学与化工学院

出　　处：《无机盐工业》2017年第10期71-74,共4页Inorganic Chemicals Industry

基　　金：贵州省科学技术厅;安顺市人民政府;安顺学院联合科技基金项目(黔科合LH字[2015]7694号);2015年贵州省教育厅本科教学工程建设项目(2015SJJG003);2016年国家级大学生创新创业训练计划项目(201510667020)

摘　　要：以廉价易得的蒙脱土为载体,采用浸渍法制备了固载型氯化铝固体酸催化剂,利用XRD、FT-IR、SEM对其结构进行了表征,并将其应用于催化油酸与甲醇的酯化反应,考察其催化性能。结果表明:氯化铝成功地被引入蒙脱土的层状结构中,既保持了氯化铝优良的催化活性,又防止其溶于反应体系。当催化剂用量为5%(质量分数)、甲醇与油酸物质的量比为10∶1、反应温度为70℃、反应3 h时,酯化反应转化率达89.9%,且该固载催化剂重复使用5次仍可保持相当高的活性。An immobilized solid acid catalyst aluminum chloride（AC）-montmorillonite（MMT） was prepared by impregnation method with inexpensive montmorillonite as the supporter.Furthermore,the immobilized solid acid catalyst was characterized by X-ray diffraction（XRD）,Fourier transform infrared spectrometer（FT-IR）,and scanning electron microscopy（SEM）.Also,the prepared catalyst was applied in the esterification of oleic acid and methanol.The results showed that the Al Cl3 was introduced into the layered structure of montmorillonite,kept the Al Cl3 excellent catalytic activity and prevented its soluble in reaction system.And up to 89.9% esterification conversion rate was obtained in the presence of 5%（mass fraction） catalyst dosage with 10∶1 of amount-of-substance ratio of methanol to oleic acid material at 70 ℃ for 3 h,and the catalyst also exhibited excellent catalytic stability within 5 times reused.

关 键 词：蒙脱土 氯化铝 酯化反应 生物柴油 

分 类 号：TQ133.1[化学工程—无机化工]