稀土分子筛固体碱催化剂Ln(PO_2NH)_3的制备及其催化性能  

Syntheses and Catalytic Activities of Rare-earth Molecular Sieve-base Catalyst Ln(PO_2NH)_3

作　　者：易江龙 杨永强 易耀勇 张宇鹏 傅志勇[2] 

机构地区：[1]广东省工业技术研究院,广东广州510650 [2]华南理工大学,广东广州510641

出　　处：《广东化工》2012年第8期35-37,共3页Guangdong Chemical Industry

基　　金：广东省高新技术产业化-工业攻关项目(2010B010800036)

摘　　要：文章报道合成了系列稀土分子筛固体碱催化剂Ln(PO2NH)3,通过XRD,IR,TG对其结构及热稳定性进行表征,并对其Knoevenagel催化性能进行研究。结果表明此催化剂具有二维的孔道结构,热稳定性较高,可在400℃以下保持有机胺碱性基团-NH稳定存在。对苯甲醛和氰基乙酸乙酯的Knoevenagel缩合反应表现出良好的碱催化活性,转化率范围在61%～66%。A series of rare-earth molecular sieve-base catalyst Ln（PO2NH）3was synthesized,the effects of rare earth catalytic properties were studied.The structure and properties was characterized by means of XRD,IR and TG.Experimental results indicated that it was an efficient base catalyst and had a two-dimensional structural motif.It had high thermal stability,and the organic amine group –NH can be retained below 400 ℃.It showed activity for the Knoevenagel condensation reaction of benzaldehyde and ethyl cyanoacetate,the conversion rate ranges from 61 % to 66 %.

关 键 词：稀土 分子筛 固体碱催化剂 

分 类 号：TQ426.41[化学工程]