Fe^(3+)改性的HZSM-5催化乳酸乙酯脱水制丙烯酸乙酯  

Catalytic dehydration of ethyl lactate to ethyl acrylate using Fe^(3+) modified HZSM-5

作　　者：张卓[1] 林鹿[1] 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广东广州510640

出　　处：《化工科技》2009年第6期1-5,共5页Science & Technology in Chemical Industry

基　　金：国家科技支撑计划重点项目(2007BAD34B01)

摘　　要：以乳酸乙酯脱水反应为模型反应,考察了Fe3+改性的HZSM-5的催化性能。通过XRD、红外等方法对改性前后的HZSM-5进行了表征。结果表明,与未改性的HZSM-5相比,改性后的Fe-ZSM-5的结晶度下降,硅铝比降低,乳酸乙酯脱水反应的催化活性明显增大,产物得率升高,选择性增大。Conversion of ethyl lactate to ethyl acrylate with Fe^3＋ modified HZSM-5 as the catalyst was investigated in this study. The HZSM-5 and modified HZSM-5 were characterized by XRD,and FT-IR techniques. Results showed that compared with HZSM-5, the degree of crystallinity and Si/Al ratios decreased after Fe^3＋ modified. The catalytic activity of Fe-ZSM-5 was high. The yield and selectivity of ethyl acrylate were much higher.

关 键 词：HZSM-5改性 乳酸乙酯 脱水 

分 类 号：TQ426.94[化学工程] O643.32[理学—物理化学]