文章摘要
高效催化3α-高托品烷肟加氢的Rh-Pd/C催化剂
Efficient Rh-Pd/C Catalyst for Catalytic Hydrogenation of 3α-Granatoxime
投稿时间:2019-12-24  
DOI:
中文关键词: 催化化学  Rh-Pd二元合金  活性炭载体  表征  催化性能
英文关键词: catalytic chemistry  Rh-Pd binary alloy  activated carbon support  characterization  catalytic performance
基金项目:陕西省科技厅重点产业创新链(群)(2019ZDLGY06-04)
作者单位E-mail
曾利辉 陕西师范大学西安 710119
西安凯立新材料股份有限公司西安 710201 
zenglihui@126.com 
李岳锋 西安凯立新材料股份有限公司西安 710201  
高武 西安凯立新材料股份有限公司西安 710201  
曾永康 西安凯立新材料股份有限公司西安 710201  
姚琪 西安凯立新材料股份有限公司西安 710201  
刘忠文 陕西师范大学西安 710119  
刘昭铁 陕西师范大学西安 710119
陕西科技大学西安 710021 
ztliu@snnu.edu.cn 
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中文摘要:
      采用甲醛还原-活性炭负载法制备了5%Rh/C、5%Pd/C和3%Rh-2%Pd/C三种催化剂,用X射线衍射(XRD)、电子显微镜(SEM和TEM)以及X射线光电子能谱(XPS)进行表征,对比其在合成3α-高托品烷胺中的催化性能。表征结果表明,在载体表面Rh-Pd二元合金颗粒粒径最小,分散性最好,可能形成了“网桥式”Rh-O-Pd结构。催化性能对比表明,3%Rh-2%Pd/C具有最佳催化性能,在25 h内可以将99%以上的原料转化,目标产物产率大于96%,且补加20%新催化剂后可循环使用3次,可降低3α-高托品烷胺生产成本。
英文摘要:
      Three catalysts of 5%Rh/C, 5%Pd/C and 3%Rh-2%Pd/C were prepared by formaldehyde reduction-activated carbon (AC) loading method. X-ray diffraction (XRD), electron microscope (SEM and TEM) and X-ray photoelectron spectroscopy (XPS) was used to characterize these catalysts and its catalytic performance were compared in the synthesis of endo-9-methyl-9-azabicyclo [3,3,1] nonan-3-amine. The results of characterization show that the Rh-Pd binary alloy particles have the smallest particle size and the highest dispersion on the surface of AC, and may form a "network bridge" structure of Rh-O-Pd. The comparison of the catalytic performance shows that 3%Rh-2%Pd/C has the best catalytic performance. It was that more than 99% of raw materials and greater than 96% of target product yield were received within 25 h, and it can be recycled for 3 times with adding 20% fresh catalyst, which can reduce the production cost of 3α-granatamine.
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