甲基丙烯酸甲酯(MMA)吸附剂失活的探析  

Study on the deactivation of the sorbent for methyl methacrylate(MMA)

作　　者：邓广金[1] 许祥娟 杨有铭[1] 赵胤[1] 许济峰[1] 焦立平[1] 曲凤华[1] 李秀梅[1] 

机构地区：[1]中国石油吉林石化分公司研究院,吉林吉林132021 [2]中国石油吉林石化公司电石厂,吉林吉林132021

出　　处：《化工科技》2015年第2期51-53,共3页Science & Technology in Chemical Industry

摘　　要：通过对吸附剂差热-热失重分析(TG-DTA)、红外线光谱(IR)、扫描电镜(SEM)、X射线衍射(XRD)、比表面积和孔结构表征研究,得出结论:甲基丙烯酸甲酯(MMA)中甲酸与吸附剂的碱性中心CaO进行物理-化学吸附,形成甲酸钙堵塞了吸附剂的孔道,致使MMA吸附剂失活。The deactivation of the sorbent for methyl methacrylate（MMA）was investigated using dif- ferential scanning calorimeter-thermogravimetric analysis （DSC-TGA）, infrared spectrum （ IR）, scan- ning electron microscope （SEM）, X-ray diffraction （XRD） and N2 absorption-desorption techniques. It was concluded that the reason for the deactivation was the block of the channel of the sorbent by calci- um formate which was formed between the formic acid from MMA and CaO from the sorbent.

关 键 词：甲基丙烯酸甲酯 吸附剂 失活 

分 类 号：TQ314.2[化学工程—高聚物工业]