李志华,曹为.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,(6):419-422
超细SiO2负载型水溶性铑膦配合物催化剂研究
Study on Ultrafine SiO2 Supported Water-soluble Phosphine-Rh Complex Catalysts
  
DOI:
中文关键词:  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
英文关键词:Ultrafine SiO\-2,Supported water\|soluble phosphine\|Rh complexes,Hydroformylation,1\|Hexene
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,,,,
李志华  曹为
[1]厦门大学化学系固体表面物理化学国家重点实验室,福建厦门361005 [2]厦门大学化学系固体表面物理化学国家重点实
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中文摘要:
      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。
英文摘要:
      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.
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