NiPd/SiO_(2)双金属催化剂上糠醛还原胺化制糠胺  

Reductive amination of furfural to furfurylamine using a NiPd/SiO_(2) bimetallic catalyst

作　　者：钟齐锋 胡锦波 张志扬 郭珊珊 陈梦婷 刘迎新[1] ZHONG Qifeng;HU Jinbo;ZHANG Zhiyang;GUO Shanshan;CHEN Mengting;LIU Yingxin(College of Pharmaceutical Science,Zhejiang University of Technology,Hangzhou 310014,China)

机构地区：[1]浙江工业大学药学院,浙江杭州310014

出　　处：《高校化学工程学报》2025年第1期105-111,共7页Journal of Chemical Engineering of Chinese Universities

基　　金：浙江省自然科学基金(LY23B060006)。

摘　　要：为了进一步提高糠醛还原胺化反应中Ni基催化剂活性和稳定性,采用共浸渍法制备NiPd/SiO_(2)双金属催化剂,在氨水作为氨源、分子氢作为还原剂条件下,催化糠醛还原胺化合成糠胺。研究了Ni/Pd摩尔比、反应温度、氢气压力、催化剂用量等对糠醛转化率和糠胺选择性的影响,同时研究了催化剂的重复使用性和普适性。结果表明,在优化的NiPd(1∶4)/SiO_(2)催化剂上130℃、2 MPa条件下反应3 h,糠醛完全转化,糠胺选择性达到91.6%,催化剂重复使用4次后仍具有良好的活性,且该催化剂在其他多种醛类化合物还原胺化制伯胺反应中也表现出较好的催化性能。In order to improve the activity and stability of Ni-based catalysts in the reductive amination of furfural,NiPd/SiO_(2)bimetallic catalysts were prepared by the co-impregnation method and used for the reductive amination of furfural to furfurylamine using an aqueous ammonia solution and molecular hydrogen as an amine source and a reducing agent,respectively.The effects of Ni/Pd molar ratio,reaction temperature,hydrogen pressure and catalyst dosage on furfural conversion and furfurylamine selectivity were investigated.Meanwhile,the reusability and the universality of the catalyst were studied.The results show that a complete conversion of furfural and 91.6%furfurylamine yield were achieved over the optimal NiPd(1∶4)/SiO_(2)catalyst under the reaction conditions of 130℃and 2 MPa H2 for 3 h.Furthermore,the catalyst still shows good activity after four recycle times.Additionally,the catalyst exhibits high performance in the reductive amination of various aldehydes to the corresponding primary amines.

关 键 词：糠醛 糠胺 还原胺化 双金属催化剂 生物质 

分 类 号：O643.3[理学—物理化学]