林产化学与工业Issue(2)：1-8,8.DOI:10.3969/j.issn.0253-2417.2014.02.001
SBA-15接枝有机胺官能团催化剂的制备、表征及在醇醛缩合反应中的应用
Preparation and Characterization of Amine Grafted SBA-15 Catalysts and Their Application in Aldol Condensation Reaction
摘要
Abstract
Solid basic catalysts were synthesized by post-grafting four different organic amines, i. e. primary amine ( PA ) , secondary amine(SA), tertiary amine(TA) and piperazidine(PP) to mesoporous SBA-15. The samples were characterized by X-ray diffraction, nitrogen adsorption, thermogravimetric analysis, scanning electron microscopy and elemental analysis. The activity of prepared catalysts was tested in aldol condensation reaction of bio-oil model compounds (furfural and acetone). The influence of graft reaction conditions, different functional groups of amine, solvents and temperature on conversion of furfural and selectivity of FA and F2 A were investigated. The results indicated that the prepared samples retain excellent ordered mesoporous structure with the amino loading at 0. 6 - 1. 0 mmol/g. The catalytic activity increased when strict N2-pretected grafting condition, protic solvent and higher temperature were used. The catalyst containing primary amine ( N2-pretected grafting condition) shows the best catalytic activity. The highest conversion of furfural (82. 6%) and product selectivity of FA (41.4%) and F2 A(8. 7%) can be achieved after reaction at 80 ℃ for 8 h in H2O solvent.关键词
生物油/SBA-15/醇醛缩合/胺/后接枝Key words
bio-oil/SBA-15/aldol condensation/amine/post-grafting分类
化学化工引用本文复制引用
任洪清,谢建军,刘华财,阴秀丽,吴创之..SBA-15接枝有机胺官能团催化剂的制备、表征及在醇醛缩合反应中的应用[J].林产化学与工业,2014,(2):1-8,8.基金项目
国家高技术研究发展计划(863计划)资助项目(2012AA051803) （863计划）
国家自然科学基金资助项目(50906091) （50906091）
