广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2012年
8期
35-37
,共3页
易江龙%杨永强%易耀勇%张宇鹏%傅志勇
易江龍%楊永彊%易耀勇%張宇鵬%傅誌勇
역강룡%양영강%역요용%장우붕%부지용
稀土%分子筛%固体碱催化剂
稀土%分子篩%固體堿催化劑
희토%분자사%고체감최화제
rare-earth%molecular sieve%base catalyst
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%。
文章報道閤成瞭繫列稀土分子篩固體堿催化劑Ln（PO2NH）3,通過XRD,IR,TG對其結構及熱穩定性進行錶徵,併對其Knoevenagel催化性能進行研究。結果錶明此催化劑具有二維的孔道結構,熱穩定性較高,可在400℃以下保持有機胺堿性基糰-NH穩定存在。對苯甲醛和氰基乙痠乙酯的Knoevenagel縮閤反應錶現齣良好的堿催化活性,轉化率範圍在61%～66%。
문장보도합성료계렬희토분자사고체감최화제Ln（PO2NH）3,통과XRD,IR,TG대기결구급열은정성진행표정,병대기Knoevenagel최화성능진행연구。결과표명차최화제구유이유적공도결구,열은정성교고,가재400℃이하보지유궤알감성기단-NH은정존재。대분갑철화청기을산을지적Knoevenagel축합반응표현출량호적감최화활성,전화솔범위재61%～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 %.
