Comments on Heterogenization of Hydroformylation

If a sensitivity analysis regarding the makeup rate is carried out, this shows that the CXL process with 72 wt% toluene as a solvent and a makeup rate of 0.5% incurs production costs of 416 million, and with a makeup rate of 1% production costs of 425 million, which are higher than the conventional cobalt-based process (all values relate to a production capacity of 150 000 mt/y). With this analysis, it must be said that in the recent past there have been periods when the price of rhodium was much higher than assumed here. Therefore, from an economic aspect it is very important that rhodium losses are kept to a minimum. 

Approach to Heterogenize Hydroformylation from the Dalian Institute of Chemical Physics 

The Ding group describes a method of heterogeneous hydroformylation for short-chain and long-chain olefins [20]. It is based on a heterogeneous catalyst, which consists of vinyl-functionahzed units, which can be converted, for example, to phosphines and then in a further step be brought through solvothermal polymerization into a macromolecular form, to which catalytically active metals such as rhodium can be bound. 

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Comments on Heterogenization of Hydroformylation 689 Table 9.2 Data for the hydroformylation of 1-octene according to [21]. 

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