Hydroformylation of 1-Hexene over Cobalt-based Solid Catalysts at Low Pressure
Hydroformylation of 1-Hexene over Cobalt-based Solid Catalysts at Low Pressure
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钴基固体催化剂低压下 1-己烯加氢甲酰化
DOI：
10.1252/jcej.36.932
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
K. Fujimoto
中科院分区：
文献类型：
--
作者：
Baitao Li;Xiaohong Li;K. Asami;K. Fujimoto
在低压（3.0 MPa）下，在淤浆相反应器中，通过活性炭负载钴催化剂（10 wt% Co/A.C.）研究了 1-己烯的加氢甲酰化。添加醇类，如甲醇和其他低级醇，显着促进反应，在3.0 MPa和403 K下实现低压加氢甲酰化过程，显着生成缩醛和醛。详细讨论了操作变量对 CO 转化率、产物收率和催化剂稳定性的影响。在Co催化剂中添加少量Ru（0.5 wt%）显着缩短了诱导期并提高了催化活性。与相应的均相催化剂相比，负载型钴催化剂在连续进料系统中具有良好的稳定性，显示出恒定的CO转化率和含氧化合物产率。
Hydroformylation of 1-hexene has been investigated over cobalt supported on active carbon catalyst (10 wt% Co/A.C.) in a slurry phase reactor under low pressure (3.0 MPa). Added alcohols, such as methanol and other lower alcohols significantly promoted the reaction to realize a low-pressure process for hydroformylation at 3.0 MPa and 403 K, markedly giving acetals and aldehydes. Effects of operating variables on the CO conversion, yields of products and stability of the catalysts have been discussed in detail. The addition of a small amount of Ru (0.5 wt%) to the Co catalyst remarkably shortened the induction period and increased the catalytic activity. Compared with the corresponding homogeneous catalyst, the supported cobalt catalyst was observed to have good stability in the continuous feed system, showing constant CO conversion and yield of oxygenates.