引用本文:
【打印本页】   【HTML】   【下载PDF全文】   View/Add Comment  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1263次   下载 1296 本文二维码信息
码上扫一扫!
分享到: 微信 更多
A New Hydroformylation Catalyst Comprising High Dispersed Metal Particles and Water-soluble Ligands: TPPTS-Rh/SiO2
Zhu Hejun1, Ding Yunjie*1, Yan Li1, Xiong Jianmin1, Yin Hongmei1, Lü Yuan1, Lin Liwu2,1
1.Natural Gas Utilization and Applied Catalysis Laboratory,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023;2.State Key Laboratory of Catalysis
Abstract:
Hydroformylation of 1-hexene over a series of silica supported noble metal catalysts,HRhCO(TPP)3,HRhCO(TPPTS)3/SiO2 and TPPTS-Rh/SiO2 catalyst were investigated. The results show that the selectivity towards aldehydes and the ratio of liner to branched aldehyde( n/b)over Rh-TPPTS / SiO2 catalyst are near to those of HRhCO(TPPTS)3/SiO2,but much higher than to those of Rh/SiO2 . Under the higher pressure of 7.0 MPa,the TOF of aldehydes on Rh-TPPTS / SiO2 catalyst increase greatly up to 0.0692 S-1 . A possible of catalyst model of Ligands containing lone-pair electron tightly chemically connected to the highly dispersed Rh particles and formation of supported aqueous-film heterogeneous catalyst possessing of homogeneous catalytic performance has been tentatively proposed.
Key words:  Hydroformylation,Supported rhodium catalyst,Trisodium salt of tri(- m-sulfonphenyl)-phosphine
FundProject:国家自然科学基金资助项目(20073046)
新型水溶性配体-负载金属氢甲酰化催化剂:TPPTS-Rh/SiO2
朱何俊1, 丁云杰*1, 严丽1, 熊建民1, 尹红梅1, 吕元1, 林励吾2,1
1.天然气化工与应用催化研究室, 大连 116023;2.中国科学院大连化学物理研究所催化基础国家重点实验室
摘要:
考察了几种硅胶负载贵金属催化剂和HRhCO(TPP)3催化剂的1-己烯氢甲酰化反应,对Rh/SiO2、 HRhCO(TPPTS)3/SiO2 和TPPTS-Rh/SiO2上的1-己烯氢甲酰化结果进行了比较.结果表明, TPPTS-Rh/SiO2催化剂的醛的选择性和醛的正异比n/b接近HRhCO(TPPTS)3/SiO2 的相应的催化性能,而远高于Rh/SiO2的相应的催化性能, 7.0 MPa高压下TPPTS-Rh/SiO2催化剂的活性大幅度增加,达到0.0692 S-1.实验排除了其他可能,认为是含有孤
关键词:  
DOI:10.1088/1674-0068/15/3/229-232
分类号: