首页 | 本学科首页   官方微博 | 高级检索  
     检索      

超细SiO2负载型水溶性铑膦配合物催化剂研究
引用本文:李志华,曹为,等.超细SiO2负载型水溶性铑膦配合物催化剂研究[J].分子催化,2001,15(6):419-422.
作者姓名:李志华  曹为
作者单位:厦门大学,化学系,
基金项目:国家重点基础研究发展计划(973计划),国家创新研究群体科学基金,教育部高校骨干教师资助计划,G2000048008,20021002,,,,
摘    要:用超细SiO2负载水溶性铑膦配合物,并研究其对1-已烯氢甲酰化的催化性能。结果表明,粒径为10-20nm的超细SiO2负载水溶性铑膦配合物所表现的催化活性比颗粒SiO2负载型催化剂高3倍多,且可在较宽的含水量范围内保持高反应活性。当膦铑摩尔比为50,超细SiO2负载型催化剂含水量为25%-55%(质量分数)、烯铑摩尔比为2500、反应温度373K和CO/H2(1/1,体积比)压力4.0MPa的反应条件下,其1-已烯氢甲酰化的反应转化数为450h^-1,产物醛的选择性为100%,醛的n/i比值达3.2。

关 键 词:超细SiO2  负载型水溶性铑膦配合物  氢甲酰化  1-已烯  二氧化硅  催化剂  催化性能
文章编号:1001-3555(2001)06-0419-04

Study on Ultrafine SiO2 Supported Water-soluble Phosphine-Rh Complex Catalysts
LI Zhi\|hu,CAO Wei,PENG Qing\|rong,YUAN You\|zhu.Study on Ultrafine SiO2 Supported Water-soluble Phosphine-Rh Complex Catalysts[J].Journal of Molecular Catalysis (China),2001,15(6):419-422.
Authors:LI Zhi\|hu  CAO Wei  PENG Qing\|rong  YUAN You\|zhu
Abstract:In this work an ultrafine SiO\-2 supported water\|soluble phosphine\|Rh complexes catalyst (ultrafine\|SiO\-2\|SAPC) has been developed for hydroformylation of 1\|hexene. The experimental results show that the ultrafine\|SiO\-2\|SAPC catalyst prepared by using SiO\-2 powder with particle sizes of 10~20 nm exhibits remarkably higher activity as compared to the reported granular SiO\-2\|SAPC catalyst and can maintain high activity with in wider range of water contents. An average TOF of a 450 h -1 run of 1\|hexene hydroformylation, where the selectivity to aldehyde is 100% and aldehyde n/i ratio is about 3.2, is obtained on the ultrafine\|SiO\-2\|SAPC containing 25%~55% of water under P/Rh(molar ratio)=50, 1\|hexene/\{Rh(molar ratio)=\}2 500, reaction temperature 373 K, and CO/H\-2 (1/1, volume ratio) pressure 4.0 MPa.
Keywords:Ultrafine SiO\-2  Supported water\|soluble phosphine\|Rh complexes  Hydroformylation  1\|Hexene
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《分子催化》浏览原始摘要信息
点击此处可从《分子催化》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号